Also engraved,'W & T. Avery Ltd, London' and,'Corporation of Preston' along with various official stamp marks for the Exchequer. The reverse side engraved from 1/16th, 1/8th, 1/4 yd, 3/8, 1/2 yd, 5/8, 3/4 yd, 7/8, 1 yd.