I need help in identifying a rifle I have. I bought it in the 1970's it's a 358 caliber rifle. It has no serial number or makers name anywhere. It looks to have a chromed Mauser action. the only numbers I found were stamped on the receiver under the stock it was 20756. There is also, a 2 circled and a T stamped on the receiver. It is equipped with a monte carlo stock. 20" barrell, 5 round trap door magazine well.