There are no notes on the internet besides the above quote about the swimsuit itself or how it was made. The actual pattern and subsequent suit had to be draped and drafted based on the above photos. Several things became clear looking at the source materials, the back is one piece with no centre seam. The front consists of two identical pieces to form the bodice with a front bottom piece, the seams at the front form the holes. Below are my notes on the pattern pieces.
A) Hat B)Bathing-Cap
A) "A great white straw hat is trimmed with leafy sprays of foliage that end in yellow flowers under the brim"
B) " It's an amusing idea- this of having a tight little black bathing-cap embroidered with fishes and then covered with a net of green silk cord, so that the fish have every appearance of being caught in a decorative net.."
-Erte's Fashion Designs 218 Illustrations from "Harper's Bazar" 1918-1932: Dover Publications (1981)
I adore Erte's whimsical designs. He was also a costume designer but designed haute couture illustrations for Harper's Bazar. The above images where also inspirations for future accessories.
Jacques-Henri Lartigue photos at Photography Board