Each Past & Present map is centred on a city or town and covers an area of 15km x 15km using four Ordnance Survey mapping series to cover four different periods: the mid 19th century, the late 19th century, the1920s and the present-day. All four maps cover exactly the same area. To achieve this, the three historical maps have been enlarged from their original inch-to-the-mile to match the 1:50,000 scale of the present-day one. The addition of the familiar National Grid on all four maps enables easy comparison across the four time periods. Historical notes, details of the original maps used and web-links for local history societies and other sources of information are also provided. All in all, comparing the past with the present has never been easier!

Cassini maps are ideal for anyone who has interest in the history of their area and wishes to trace the changes that it has undergone since the Industrial Revolution. Some aspects have changed almost beyond recognition, while others have hardly altered. These maps help you see them all. Digitally enhanced, enlarged, exactly matching present-day OS Landranger® maps and immaculately printed, there has never been a better way of discovering the landscape of the past

Whether you're a local historian, a genealogist, a student, a walker or someone with a general interest in the history of your area, these maps will be a valuable addition to your library. Although often hidden behind unfamiliar names or buried under concrete or tarmac, the past is all around us and waiting to be discovered. Cassini's Historical Map series will help point out the way.

Thank you for looking.