anchor.diff:  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"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589072.0x000002/manifest.json,16661369,"Theatre Royal, Liverpool 1773-1781"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589080.0x000002/manifest.json,16661340,"Theatre Royal, Liverpool 1820-1822"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589086.0x000002/manifest.json,16661340,"Theatre Royal, Liverpool 1820-1822"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589076.0x000002/manifest.json,16661341,"Theatre Royal, Liverpool 1823-1825"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589078.0x000002/manifest.json,16661341,"Theatre Royal, Liverpool 1823-1825"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589082.0x000002/manifest.json,16661370,"Theatre Royal, Manchester 1793-1808"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589084.0x000002/manifest.json,16661370,"Theatre Royal, Manchester 1793-1808"
  +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"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589098.0x000002/manifest.json,16661373,"Theatre Royal, Stafford 1796-1835"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589194.0x000002/manifest.json,16661386,"Theatre Royal, York 1782-1849"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589196.0x000002/manifest.json,16661386,"Theatre Royal, York 1782-1849"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589126.0x000002/manifest.json,16661385,"Theatre, Drayton 1795-1844"
  -http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022589130.0x000002/manifest.json,16661385,"Theatre, Drayton 1795-1844"
  +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"
  
positive.code: manifest_uri,system_number,title
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588857.0x000002/manifest.json,16661350,Covent Garden Theatre 1753-1779
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588873.0x000002/manifest.json,16661350,Covent Garden Theatre 1753-1779
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588789.0x000002/manifest.json,16661351,Covent Garden Theatre 1779-1781
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588775.0x000002/manifest.json,16661352,Covent Garden Theatre 1781-1783
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588781.0x000002/manifest.json,16661353,Covent Garden Theatre 1783-1785
  
negative.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 (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588881.0x000002/manifest.json,16661273,Covent Garden Theatre 1826-1830 (Vol. 2)
  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 (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588887.0x000002/manifest.json,16661301,Covent Garden Theatre 1829-1831 (Vol. 2)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588893.0x000002/manifest.json,16661302,Covent Garden Theatre 1831-1832 (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588897.0x000002/manifest.json,16661302,Covent Garden Theatre 1831-1832 (Vol. 2)
  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 (Vol. 1)
  http://api.bl.uk/metadata/iiif/ark:/81055/vdc_100022588899.0x000002/manifest.json,16661276,Covent Garden Theatre 1834-1836 (Vol. 2)
  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
  