1943 Shakeproof Cowl Fasteners & HallOWell Work Benches Vintage Ad

This original  8.5 x 11" ,magazine ad from 1943 showcases two companies offering components in support of wartime production.  On the front is an ad from Shakeproof Fasteners detailing their cowl fastener.  On the reverse is ad ad from Hallowell shop equipment promoting their work benches and chairs.