Elastic waist band is stretchy and in good shape! Stretched out, it's a size 30 waist, and based on my measurements a 30 length inseam. I took pictures with measurements of both garments. Please review all photos!
These came with other WW2 era clothing, gear, etc., so I think this must be from the 1940s or later 40s early 50s, but I don't know for sure. The manufacturer is "Hawthorne," as you can see from one of the labels I took a photo of.
If you need additional photos or measurements, please let me know!