Bobby Wier... Jack Cassidy... who are these people? Sorry 'bout the pedantry... couldn't help it. Nobody gets my name right either.
As to the lack of a die-stamped number... I've actually wondered when, why, and how they started numbering. If it's true, the story of Crosby's Crest 12-string theft being the initiative to start numbering them is great. Anyway, I know for sure peanut guitar #72-05 has a stamped number in the end of its headstock, though I am not sure it is the only instrument to bear that number. Interestingly, maybe telling that it's '05', and not '005'. Fewer numbers to stamp? Later instruments are only 2-digits.
Some of you might remember that wild half-pretzel/half-peanut guitar that turned up a few years back... some kind of purloined story... supposedly it was Alembic #4 chronologically, marked under one of the pickups. Stamping the headstock may not have been possible. Or they didn't have stamps yet. Or maybe it was all just Facebook bull.