The Commercial Pattern Archive (CoPA) at URI has hat patterns, which makes it a good place for milliners to look for inspiration. McCall 1372 is one of the patterns that doesn’t have an image of the pattern pieces, but you could apply these trim ideas to a purchased hat.
If you want to read the suggested fabrics or other details, just log in to the C0mmercial Pattern Archive and search for McCall 1372. (Be sure to chose “any” in the final “collection” category.) Using CoPA is free!
Many of CoPA’s hat patterns do show the original pattern piece shapes.
I used to think cloche hats had to be made by starting with a felt shape, but 1920s’ sewing patterns allowed women to make a cloche without having to own equipment to steam and block the felt.
The black hat on the left has a very simple pattern:
Notice that the lining is very simple, and does not have to echo the shape of the hat. The same lining is used for variation B of Butterick 1800:
An experienced milliner would know to add lining and an interior ribbon band in the right size for the head measurement.
Version 1 only shows two gores, but I’m guessing the instructions said “cut two” of each….
Version 2 is really simple: a circular top, a crown with tall, curved sides that are crushed into folds, and a quirky shaped brim which folds down over one cheek. You could sew on a pair of jeweled buttons if you don’t have a Cartier cliquet pin.
Hats began shrinking in the 1930s; in the “I would never have figured that out!” department, here is a preview of McCall No. 69, a hat pattern from 1932.