A 19 Century Folding Ivory Rule with 18 Scales By Rabone.
Item#: SLG475
SOLD
This is a 24", 4 fold large Architect Ivory Ruler made by J. Rabone & Sons, Birmingham England. C.1850. The hinges are artistically made from German Silver and steel bearing. This rule has 18 sub scales with different divisions and a protractor.