I believe it was manufactured or delivered on October 3, 1941. Body width 24.6inch (measured around the armpit). Length (from the collar) 29inch. Sleeve length (from armpit) 22inch.
I think it will be L-XL. I think that even a person of about 170cm height can wear it coolly with the oversize that is in fashion now. The fabric is firm and in good condition. There are no stains or tears. There are no missing buttons.
I don't think they come out very often. The back of the buckle is stamped "warter bury buckle. Co" (looks like a Connecticut company that has been around since 1853). (It seems that the company has been in Connecticut since 1853). I have seen the mark of an ikari, but I think this engraving is very rare.