4x old 60cm long John Rabone Contraction Rules - No. 1123, 129, 135, 143
Each rule is marked 'J Rabone & Sons, Birmingham, Made In England'.
Contractions: 1/38 (doubled contraction for aluminium), 1/48 (double contraction for cast metal), 1/64 (for steel), 1/96 (for cast metal), 1/70 (for brass), 1/77 (aluminium), 1/120 (for iron),
Condition: some black staining/pitting, please see photos for condition.
