<div class="description">
Christopher and John Greenwood's's 8 inches to the mile 6 sheet map was first published in 1827</div>
<div class="fn value">
<a href="https://en.wikipedia.org/wiki/Christopher_Greenwood_(cartographer)" class="extiw" title="en:Christopher Greenwood (cartographer)">Christopher</a> and John Greenwood</div>
1830 (dated)
Unknown - scan available from Harvard University <a rel="nofollow" class="external free" href="https://iiif.lib.harvard.edu/manifests/view/ids:8982548">https://iiif.lib.harvard.edu/manifests/view/ids:8982548</a>