
Originally Posted by
Patrick Chadwick
If it is a post-war Belgian civilian Mauser, then it must have Belgian civilian proof marks and an inspector's mark. Furthermore, these marks should have been applied so that they are visible without dismantling the rifle in any way (e.g. removing the handguard).
The inspector's mark is a small star above a capital letter.
The proof mark will be some form of the well-known cartouche with a crown on top and E over LG within, standing for Épreuve Liege (= Liege Proof)
and there should also be a letter, which is a year code. In the likely time range for your rifle this would be a Greek letter, starting with alpha for 1948, through beta, gamma (1950), delta, zed, theta, lambda, mu, xi, pi, rho, sigma, tau to phi (1961). From 1962 on with lower case a, b...
If you cannot find any of these, then the rifle may not be what you think it is, and photos of all markings are a must!