Ladies US military service cap of some vintage in Very Good condition. Pleated top, made with an unusual mesh lining of some kind of early artificial material. No tag. As such the size is tricky to know, I think it is around a 6 7/8 or a little smaller, definitely not a 7. Given the shape and the low IQ of men regarding women's sizes, if you want this to wear then please allow some margin of error and really some garments just have to be tried on. Ideal for collection as example of a scarce type.
The third photo is the cap turned inside out but it didn't really show much.