anchor.diff:  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589148.0x000002/manifest.json,16661407,Olympic Theatre 1832-1834
   http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588997.0x000002/manifest.json,16661320,Princess's Theatre 1840-1844
   http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589001.0x000002/manifest.json,16661320,Princess's Theatre 1840-1844
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588993.0x000002/manifest.json,16661321,Princess's Theatre 1856-1860
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588999.0x000002/manifest.json,16661321,Princess's Theatre 1856-1860
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588993.0x000002/manifest.json,16661321,Princess's Theatre 1856-1860 (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588999.0x000002/manifest.json,16661321,Princess's Theatre 1856-1860 (Vol. 2)
   http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589288.0x000002/manifest.json,16661322,St. James Theatre 1835-1838
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589024.0x000002/manifest.json,16661285,"Theatre Royal, Bath 1812-1818"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589030.0x000002/manifest.json,16661285,"Theatre Royal, Bath 1812-1818"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589026.0x000002/manifest.json,16661327,"Theatre Royal, Bath 1824-1830"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589032.0x000002/manifest.json,16661327,"Theatre Royal, Bath 1824-1830"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589034.0x000002/manifest.json,16661328,"Theatre Royal, Bath 1831-1840"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589042.0x000002/manifest.json,16661328,"Theatre Royal, Bath 1831-1840"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589028.0x000002/manifest.json,16661326,"Theatre Royal, Bath 1834-1840"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589048.0x000002/manifest.json,16661326,"Theatre Royal, Bath 1834-1840"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589036.0x000002/manifest.json,16661329,"Theatre Royal, Bath 1841-1851"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589040.0x000002/manifest.json,16661329,"Theatre Royal, Bath 1841-1851"
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589024.0x000002/manifest.json,16661285,"Theatre Royal, Bath 1812-1818" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589030.0x000002/manifest.json,16661285,"Theatre Royal, Bath 1812-1818" (Vol. 2)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589026.0x000002/manifest.json,16661327,"Theatre Royal, Bath 1824-1830" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589032.0x000002/manifest.json,16661327,"Theatre Royal, Bath 1824-1830" (Vol. 2)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589034.0x000002/manifest.json,16661328,"Theatre Royal, Bath 1831-1840" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589042.0x000002/manifest.json,16661328,"Theatre Royal, Bath 1831-1840" (Vol. 2)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589028.0x000002/manifest.json,16661326,"Theatre Royal, Bath 1834-1840" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589048.0x000002/manifest.json,16661326,"Theatre Royal, Bath 1834-1840" (Vol. 2)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589036.0x000002/manifest.json,16661329,"Theatre Royal, Bath 1841-1851" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589040.0x000002/manifest.json,16661329,"Theatre Royal, Bath 1841-1851" (Vol. 2)
   http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589058.0x000002/manifest.json,16661331,"Theatre Royal, Birmingham 1806-1809"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589056.0x000002/manifest.json,16661332,"Theatre Royal, Birmingham 1810-1812"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589062.0x000002/manifest.json,16661332,"Theatre Royal, Birmingham 1810-1812"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589052.0x000002/manifest.json,16661333,"Theatre Royal, Birmingham 1813-1815"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589054.0x000002/manifest.json,16661333,"Theatre Royal, Birmingham 1813-1815"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589064.0x000002/manifest.json,16661334,"Theatre Royal, Birmingham 1831-1835"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589238.0x000002/manifest.json,16661334,"Theatre Royal, Birmingham 1831-1835"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589044.0x000002/manifest.json,16661336,"Theatre Royal, Bristol 1819-1823"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589060.0x000002/manifest.json,16661336,"Theatre Royal, Bristol 1819-1823"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589088.0x000002/manifest.json,16661337,"Theatre Royal, Dublin 1825-1829"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589298.0x000002/manifest.json,16661337,"Theatre Royal, Dublin 1825-1829"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589066.0x000002/manifest.json,16661338,"Theatre Royal, Dublin 1830-1839"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589074.0x000002/manifest.json,16661338,"Theatre Royal, Dublin 1830-1839"
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589056.0x000002/manifest.json,16661332,"Theatre Royal, Birmingham 1810-1812" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589062.0x000002/manifest.json,16661332,"Theatre Royal, Birmingham 1810-1812" (Vol. 2)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589052.0x000002/manifest.json,16661333,"Theatre Royal, Birmingham 1813-1815" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589054.0x000002/manifest.json,16661333,"Theatre Royal, Birmingham 1813-1815" (Vol. 2)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589064.0x000002/manifest.json,16661334,"Theatre Royal, Birmingham 1831-1835" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589238.0x000002/manifest.json,16661334,"Theatre Royal, Birmingham 1831-1835" (Vol. 2)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589044.0x000002/manifest.json,16661336,"Theatre Royal, Bristol 1819-1823" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589060.0x000002/manifest.json,16661336,"Theatre Royal, Bristol 1819-1823" (Vol. 2)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589088.0x000002/manifest.json,16661337,"Theatre Royal, Dublin 1825-1829" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589298.0x000002/manifest.json,16661337,"Theatre Royal, Dublin 1825-1829" (Vol. 2)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589066.0x000002/manifest.json,16661338,"Theatre Royal, Dublin 1830-1839" (Vol. 1)
  +http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589074.0x000002/manifest.json,16661338,"Theatre Royal, Dublin 1830-1839" (Vol. 2)
   http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589180.0x000002/manifest.json,16661412,"Theatre Royal, Edinburgh and Theatre Royal, Perth 1825"
   http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589150.0x000002/manifest.json,16661387,"Theatre Royal, Hull 1801-1807"
   http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589156.0x000002/manifest.json,16661388,"Theatre Royal, Hull 1807-1814"
  
positive.code: http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588859.0x000002/manifest.json,16661300,Covent Garden Theatre 1821-1822
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588889.0x000002/manifest.json,16661271,Covent Garden Theatre 1823-1824
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588883.0x000002/manifest.json,16661272,Covent Garden Theatre 1825-1826
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588879.0x000002/manifest.json,16661273,Covent Garden Theatre 1826-1830
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588881.0x000002/manifest.json,16661273,Covent Garden Theatre 1826-1830
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588891.0x000002/manifest.json,16661274,Covent Garden Theatre 1827-1831
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588885.0x000002/manifest.json,16661301,Covent Garden Theatre 1829-1831
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588887.0x000002/manifest.json,16661301,Covent Garden Theatre 1829-1831
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588893.0x000002/manifest.json,16661302,Covent Garden Theatre 1831-1832
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588897.0x000002/manifest.json,16661302,Covent Garden Theatre 1831-1832
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588901.0x000002/manifest.json,16661303,Covent Garden Theatre 1832-1833
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589010.0x000002/manifest.json,16661275,Covent Garden Theatre 1834-1835
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588895.0x000002/manifest.json,16661276,Covent Garden Theatre 1834-1836
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588899.0x000002/manifest.json,16661276,Covent Garden Theatre 1834-1836
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588929.0x000002/manifest.json,16661304,Covent Garden Theatre 1840-1841
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588745.0x000002/manifest.json,16661348,Drury Lane Theatre 1754-1813
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588737.0x000002/manifest.json,16661349,Drury Lane Theatre 1763-1764
  
negative.code: http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589168.0x000002/manifest.json,16661410,"Theatre Royal, Hull 1825-1826"
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589162.0x000002/manifest.json,16661411,"Theatre Royal, Hull 1826-1827"
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589160.0x000002/manifest.json,16661398,"Theatre Royal, Hull 1827-1830"
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589070.0x000002/manifest.json,16661369,"Theatre Royal, Liverpool 1773-1781" (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589072.0x000002/manifest.json,16661369,"Theatre Royal, Liverpool 1773-1781" (Vol. 2)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589080.0x000002/manifest.json,16661340,"Theatre Royal, Liverpool 1820-1822" (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589086.0x000002/manifest.json,16661340,"Theatre Royal, Liverpool 1820-1822" (Vol. 2)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589076.0x000002/manifest.json,16661341,"Theatre Royal, Liverpool 1823-1825" (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589078.0x000002/manifest.json,16661341,"Theatre Royal, Liverpool 1823-1825" (Vol. 2)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589082.0x000002/manifest.json,16661370,"Theatre Royal, Manchester 1793-1808" (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589084.0x000002/manifest.json,16661370,"Theatre Royal, Manchester 1793-1808" (Vol. 2)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589158.0x000002/manifest.json,16661399,"Theatre Royal, Margate 1796-1797"
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589090.0x000002/manifest.json,16661373,"Theatre Royal, Stafford 1796-1835" (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589098.0x000002/manifest.json,16661373,"Theatre Royal, Stafford 1796-1835" (Vol. 2)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589194.0x000002/manifest.json,16661386,"Theatre Royal, York 1782-1849" (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589196.0x000002/manifest.json,16661386,"Theatre Royal, York 1782-1849" (Vol. 2)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589126.0x000002/manifest.json,16661385,"Theatre, Drayton 1795-1844" (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589130.0x000002/manifest.json,16661385,"Theatre, Drayton 1795-1844" (Vol. 2)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589138.0x000002/manifest.json,16661396,"Theatre, King's Lynn 1764-1772"
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589166.0x000002/manifest.json,16661403,"Theatre, Portsmouth 1781-1782"
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589164.0x000002/manifest.json,16661413,"Theatre, Scarborough 1784-1846"
  