I think the majority of sxs I saw while living in germany had swivels and the cheekpiece. There were exceptions and straight stocks were much more common in the guns made later (1960's and later). PS. The barrel flats will tell you a lot. Many of the old german guns are marked with the date made. 12/56 would be December 1956. Normally the chambers would be marked as well 65 (2.5") or 70 (2 3/4").

foxes rule