None of the early Action boxes had a number on them, to my knowledge, and I don’t think the headstamps did either. I don’t collect dates, so I can’t make a real comparison, but it would be interesting to know the overlap between Action 1 and Action 2 production. The early boxex don’t call the Action 1 by any name with a number, and of course, they would have no reason to call it “Action 1” until after there was an Action 2. Before that, there would be no reason to assign a number to it unless they knew straight away that they were going to change or improve it later, which doesn’t seem likely.
I would think that the box marked with the “1” is from after the introduction of Action 2, but again, with no dates in the collection, I am not sure exactly when each of the Action Series was introduced, and how much production overlap there was between the variour numbers.
Lew - you don’t have enough to keep you busy, so maybe that’s still another project for you!
Erlmeier/Brandt says the Action Geschoss was introduced about 1977.