Impossible to answer without a DETAILED description of ALL markings and parts.
6543278 - 776858 - 7500 - 7588 - 757 - 3445 = 5,747,130
7588 comes after 7587 but before 7589. Anymore than that will require much more info.
1517.60
There is no legal age to be able to shoot a gun but the age statue varies from state to state as to what age it can be done unsupervised.
I think that it is not how old you are to shoot a gun it is the experience that you have with one.
The Value of a gun is determined by it's age, make, condition of the gun and how desirable it is.
Hand gun - 21; long gun - 18
1963
There is no age limit.
21 for hand gun 18 for long gun
Contact the maker, gun show, gun shop, library
No,