Description

Great Kerby & Bro., New York – Manila Cordage Rope Caliper Rule
A scarce and highly distinctive Kerby & Bro. (New York) rope caliper rule, designed specifically for measuring manila cordage—the dominant rope material of the 19th and early 20th centuries. These specialized caliper rules were essential tools for riggers, chandlers, shipyards, and maritime suppliers, yet few survive today in clean, legible condition.