http://www.ebay.com/itm/271226435642
This vintage bathing suit was made in the mid 1930s. This was a transitional time between the age of one or two piece men’s bathing suits, and that of topless bathing suits. The top is detachable on this one via a Kwik zipper, which bears patents no 1752111, 1814244, and a third which is somewhat difficult to read. The trunks have a diamond gusseted crotch and belt loops. The top is striped.

Waist (unstretched): 8″ (doubled = 16″)
Waist (stretched): 12″ (doubled = 24″)
Side seam: 9″
Rise: 12″