Incorrect Number vs. No Number

[mjanway]

In the world of Lugers, is it more preferable to have a part with an incorrect number or no number? This would have to do with a commercial shooter and internal parts or parts you could not see unless disassembled.

This has nothing to do with selling, buying, or trading as it is a family weapon and hopefully passed down forever more. In cleaning, repairing, and documenting several different types of weapons to continue this tradition, this question has been in my mind concerning the Luger.

Thank you

Jack