SU + SZ 1940s Map Tiles

This is two 100 x 100km National Grid tiles combined and is in Jpeg 2000 format with built-in GIS registration information. Each image pixel is 4.00 metres on the ground making 100km to be 25,000 pixels.

This image is from the Ordnance Survey New Popular Edition of the 1 inch to 1 mile (1:63,360) mapping issued in the late 1940s. This is the pre-cursor to the OS 1:50,000 maps used today.