I have a Case XX 1836 Bowie knife with a brass strip is attached along the spine. Over the years, I have seen quite a few like it but this particular knife has the word "ALAMO" engraved on the blade. There is a card in the display box which reads:

Limited Edition Collector's Issue
"Alamo"
# One of One
by (Case) @ Smith's
Specially Tempered Van-Kro Steel
Hand made in the U.S.A.

Is it possible that it came from the factory like this? Or is it more likely that the engraving was done later?