This just in...
Thanks to Jason Randall (actually his bride) for sending me this scan. This is Gus Grissom's knife that is in the space museum. Unusual trademark (blade to be more correct) stamp. The hilt is also indicative of the "first runs", i.e. not nearly the same shape and length as the #17's of today. Interesting, the way things evolve.
Also: As a side note: Jason tells me that the guy from the moseum is, either friends with (or related) to Grissom's brother and has made a knife himself. More to come...I hope. Thanks Jason!
Best, Capt. Chris