Most of these that I've seen have the VW logo and a few other things cast into the stem that goes into the slot on the car. This one has nothing. Has the "AB" marking for dropping it down but that's it.

Just curious if this is a particular series or run of them made differently? I can't see anyone making aftermarket jacks.

Some early jacks were made by APAC an Australian Co and I'm led to believe are quite rare. Should have APAC on base plate

Will have to clean it up a little to see. But where you have the logo on that pic on the shaft, mine is blank. Pretty sure the base plate is blank too.