Early Pre-War Model 62
Today I bought an early pre-war Winchester Model 62. From what I have learned, it is an early pre-war because of the serial number (made in 1936), the short fore-arm and the "Model 62" on the barrel. However, the serial number on the bottom of the receiver has an "A" stamped after the number. The "A" is slightly smaller than the numbers. The same serial number on the tang does not have the "A" at the end. Does this make sense?
Also, can someone point me to where I can find the procedure for removing the bolt so I can clean it, or possibly tell me how to do it? Thank you in advance for any and all replies.