Thanks Jan,
I think the number that Frog Prince was referring to is the one on the base of the marlin spike (opposite the waffen amt stamp, exterior). I do not know what you 1983 and 1866 stamps refer to . I believe mine is stamprd 824 internally (but it is not with me now I am not sure of the #) I have not removed the blade to look at the backside, I will try that tonight to see if there is a # on the back. Anyone else know what these internal # stampings refer to (part manufacturer?)???
