this is an original  1880s  map titled "  huntingdon & cambridge " a w & a.k. johnston map and published by adam and charles black for the publication encyclopaedia britannica ninth edition which dates from 1875 through to 1885 for the ninth edition  . the plate measures 8.1/4" -- 10.3/4" and is in nice used condition with some light age browning ! this would look nice mounted and framed . i have many more historical maps you can view in my ebay shop !