Two 12" long contraction rules made in Sheffield, England by Chesterman. Includes: 1 x rule marked 'No. 1291D Contn 1/64, 1/60 and 1/120'. Either side of rule is marked in inches. 1 x rule marked 'No. 1320D Contn 1/100, contn 1/96' rule is marked out in inches and millimetres to one side. Has slight bend to rule.
Both rules have the previous users initials punched in to the end. Rule no. 1320D also has user stamp punched into reverse side.