I'm sure there are a lot of firearms companies that stamped the serial number on various parts. Even the lowly Field Grade, the cheapest of the hammerless guns from L.C. Smith had most of the parts serial numbered. The reason is, that even this low grade gun the parts were all hand fitted and scattered anywhere in the Hunter Arms or Marlin building/s. When the parts came back they wound up on the same gun. The for-end wood was serial numbered as was the stock.
So as being, there really is no need to serial number this for-end, it fits and won't get lost with other parts. To stamp it would mean you would have the right size numbers and do it correctly.
Does it matter?
