I bought this playsuit recently and I cannot figure out whether it is true 40s or a later reproduction (maybe 80s?). The style is very 40s but there are no labels - it might be very nicely homemade. The fabric is a soft cotton linen-like material, and the seams are either turned under and top-stitched or finished off by hand to prevent fraying. The shorts close with 4 buttons - mostly I am having trouble figuring out whether these type of buttons were used in the 40s; they are plastic with a iridescent paint on them. Any help would be much appreciated!