Circa 1950s - many would simply call this a bullet bra However, this example by Hollywood Maxwell used the trademark whirlpool because of the company's proprietary spiral stitching on the cups.

Whirlpool' Spiral Stitch Overwire Bra By Hollywood Maxwell

1950 women's Hollywood Maxwell V-ette 50 Whirlpool bra vintage ad

Kelowna Capital News 09 March 2011 by Kelowna CapitalNews - Issuu

chuchundra69 – Blue Marble Villa

Whirlpool' Spiral Stitch Overwire Bra By Hollywood Maxwell

Final product (maybe) for my sister's 70s themed birthday party! : r/VintageFashion

Schiffer Art and Design Spring 2021 by SYINC - Issuu

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Hop Act PT 4, PDF, Wafer (Electronics)

I just got a vintage bowtie to tie ! : r/VintageFashion

strhw 345yq3y by loopedsaxe3 - Issuu

Final product (maybe) for my sister's 70s themed birthday party! : r/VintageFashion

Download (23MB) - Northumbria Research Link