No.809 Verulam 12 inch oval scale ruler with architects scales – imperial:
Made from white ABS plastic
Scales: side 1 – 10ft = 1″ & 20ft = 1″ side 2 – 30ft = 1″ & 40ft = 1″
The overall dimensions of the ruler are 327mm x 35mm
Manufactured in the UK for accuracy
Supplied in a re-usable clear plastic sleeve.