US Army M37 M45 OD-33 Khaki Wool Serge Field trousers
Dated 12-20-45
Very good quality thick heavy fabric
Button fly
Hip and rear pockets

Possibly from a costume department as seat shows signs of alteration.
Generally in good clean condition, they appear to have been taken in and then back out again as there is a light crease down the seat seam, not showing well in pictures and its not horribly visible in real life but worth mentioning :-) Also lower left leg has very slight thinning in a small area on each side, again not particularly noticeable when worn

Stamped with size W38 L33 but leg length is shorter
Actual waistband 39"
Inside leg 29.5"