Signature in stocks

How man others have come across the stock-maker's signature, inside the stock? I purchased this Akela new last December (at a much better price than the current Black Friday sale price, I might add), and just recently got around to removing the stock for some mods. I was surprised to find what I assume to be the maker's signature in the forearm.

Akela stock signature.jpg
 
How man others have come across the stock-maker's signature, inside the stock? I purchased this Akela new last December (at a much better price than the current Black Friday sale price, I might add), and just recently got around to removing the stock for some mods. I was surprised to find what I assume to be the maker's signature in the forearm.

View attachment 408048