These ladies in bathing suits are referred to as BATHING BEAUTIES or BATHING LADIES.
The photo shows a full-figural bathing beauty half doll made by Fasold & Stauch of Bock-Wallendorf (the lady in red), an exceptional ART DECO trinket box or vanity box in the form of a wicker chair decorated with a bathing belle dressed in black. This beauty was also made by Fasold & Stauch of Bock-Wallendorf. The tiny lady in a blue bathing suit was made by Wm. Goebel of Oeslau/Bavaria. The half doll / pin cushion doll measures 4.2 cm (1,65") in height.
I WISH YOU NICE AND SUNNY SUMMER VACATIONS!