That's entirely consistent with my thoughts and observations, and I have seen similar decks listed as "ASS" manufacture. I'm going to hazard a guess and say 1960 give or take 5 years because of the quality of the paper which appears to be about 350+ gsm paper. The 'finest' German manufactured paper theses days you can find is 310gsm, and I see that this company still produces a 250gsm, but show older stocks being 300/310/320/330/340/350 when I found a catalog online from the 60's. I ordered a free catalog from them about the "50 years of Chromolux Papers" history. We'll see what it turns up. The manufacturer listed on the box is indeed what I showed in the OP, but I do see what you're talking about and hadn't tried to decode that 'fine print' on the "Valet" (Jack) of Clubs. That hard-bound book was printed in 2011, so I'm going to say they started making Chromolux paper in 1961 - but I'm sure I could be off one side or the other by a year or two. 1965 seems entirely reasonable looking at more recent samples of German made Skat decks the paper is not nearly as fine nor glossy and the colors nowhere near as detailed nor do they 'pop' like these. I'll go $4.24 on the next deck I see, also, though!