Scope and Contents This collection consists of a log rule with a caliper and a one-foot diameter wheel at the other end. It is made of wood and metal and measures 56" long x 30"wide x 3" depth. The name of the maker, F.H. Greenleaf and the address, 62 Oak Ave. Belmont, Mass, is carved on the log rule near the wheel. An individual called “a scaler” in the lumbering business used this item to measure a log’s diameter and length to find the total board footage a log would provide. This specific item does not have...