ODD AND UNUSUAL "GOTEM SQUARE" PATENTED 1910 - CANADIAN MANUFACTURE

NOW $45

Stamped 'MANF'D BY ROSS & CLEMENTS VANCOUVER B.C' and 'R&A GOTEM SQUARE PAT SEP 27 1910'. 

Very unusual aluminum patented square with two steel rules. Clearly a rafter framing square as there are designations for 'Hip and Valley' and 'Rise Per Foot'. Appears complete but I cant find any information on it. Good overall condition.