Buck One Foot our Fold Rule.
Preston 3230 ?
12 inches by 5/8th wide
Marked Buck Holburn Viaduct London.More than likely this is a preston 3230 Rule.which is described as a Gents Thin Rule.
Arch joints,Brass Mounts Marked 8ths 16ths 12ths.
In excellent condition, without ever being attacked by the polishing brigade.
A wonderful rule for the collector.