Here is the J-9, pic courtesy AA.
I find mention on GJ of J-9 appearing in 1950 cat, and the J-9A is in the 1954 cat according to GJ member tinmedic.
Differences include; faceplate of ratchet now stamped with "Herbrand" "Made in U.S.A." "J-9A" and "VAN-CHROME" at 90° apart of where drive protrudes. J-9 had this stuff stamped into main forging of body. The small crank handle, and drive extension with rotating grip appear the same. Main forging entirely different shape on J-9A, reminiscent of the Herbrand no. 194 drain plug wrench, pic attached.
I didn't count teeth but feels about 20. Very smooth action. Selector very positive. It has been used so I might have to give it a try for novelty's sake. But I've just always had a thing for these, and was an important bucket list tool off the list. A pry it out of my cold dead hands addition to my personal Davesonian, lmfao
Herbrand also made other obscure speeder ratchet examples, courtesy of this 1942 cat snippet. I believe Snap-on made something similar.