RARE VINTAGE RICKETSON & SCHWARZ BOXWOOD BRASS FOLDING RULER 48" MILWAUKEE WI

RARE VINTAGE RICKETSON & SCHWARZ BOXWOOD BRASS FOLDING RULER 48" MILWAUKEE WI

This is is a vintage 24" broad sized four-fold boxwood Roofer's Rule with arch joint and brass edge plates. Plus, this example is marked with advertising " COMPLEMENTS OF RICKETSON & SCHWARTZ - MILWAUKEE ". It also has edge graduations for 1/10ths and 1/100ths of a foot. This rule is not marked with a maker, but was likely manufactured by Stanley. The best feature of this unusual rule is that the inside is marked with a special Roofer's Scale . Still has the original alignment pin and folds up nice and tight.