Interlox No 106 Master Rule Sliding Locking 72" Carpenter's Inside Outside Ruler
Vintage Interlox No.106 locking sliding 6 foot wood and brass ruler made by Master Rule Mfg. Co. New York City. 72" long with one side showing inside measure and the other side showing outside measure. Vintage, pre-owned item with some wear from use as might be expected but it is working properly and in good condition.
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