Vintage Snap-on Wrench,prototype,b-3411. Pivot 1/2 And 9/16 Head With Pins. Rare

Details

aluminium vintage snap-on pivoting head open end wrench. found in my grandfathers toolbox prob from the 1940-50'swrench says.. snap-on b-3411 not guar usa "square symbol" please see all pics !!! 1/2 and 9/16 head.has pins that hold the head and it moves freelyappears it was attempted to be cleaned with maybe polishing compound or buffing wheel.rare rare rare !!!...

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