Newbie question about magazines, wood VS. Aluminum

[MFC]

There were commercial mags with plain wood bottoms made from 1900 to well into the 30's. Some one probably force matched it to your 1940-42 which should have an aluminum bottom mag with a blued tube. If the mag is an original WWI Army mag with the same number and suffix of your Luger, that would be just extremely good luck but not correct.