Well, there might not have been many to begin with.

Now I I’d like to find the removable handle model.
I didn’t remember Alloy Artifacts had one of these bullet extendables. Mine has two patents (
1995009 for the Pfauser ratchet mechanism, and
2282148 Mandl previous style removable handle, and a Pat’s Pend stamp. Thanks to AA, I see that the pending patent is in reference to this here non-removable conversion style handle, which is
2520652 joint effort by Pfauser and Mandl seen below. That indicates that my example must be a touch earlier than AA’s since theirs has all three patents present.
Datamp on the other hand still has this listed as never produced.
Pretty cool it was a joint effort by the inventors. The attorneys’ names also caught my attention. Lieber & Lieber. Not to be confused with songwriter/production team Leiber and Stoller, or this would most definitely have been a hit!