Ellenbr,
there is no writing on the flats. Just the usual German proof marks. I don't think a Suhl catalog would apply in this case since this is Eckernforde made Sauer in 1954. Thank you for taking the time to look in your catalog though. I was thinking that is was a model 60 but I didn't think the 60 had side clips. I don't think it is a Royal model because the Royal had ejectors and had a scalloped action. I was thinking that perhaps it was a model between these two that I have no knowledge of.
Thanks,
Dave B