Digging through my....ugh...stuff. I wondered about my oddball vintage 4pt sockets with plain steel finish and no makers mark. Out of sheer coincidence, I was scrolling through the SK section of AA and saw what sure seemed to be a match to mine. No makers mark, but a dot.

Compare that to the Indestro (or BOG) identified with a star on either side, and sure enough that identified my other set.

Thus, rambling on about 4pts even more, the Herbrand is clearly noted with the Circle/H as shown in the picture, and while it does the job, it sure wont win a beauty contest.
It takes a maker like Williams however to raise the bar on the lowly 4pt socket.
Nice job Williams!