Your first pic looks close. The others are true Reichsrevolver. Look at the front of the frame below the barrel, and the way the trigger guard attaches, quite different from the one you showed and the one in your first link.
FWIW, per Geschichte und Technik der eurpopäischen Militärrevolver, there is no difference in appearance between the double and single action models of the 1883 revolver except the trigger itself.
As to markings, the contract revolvers were marked with the maker's name/trademark. But there was no law in Germany requiring that commercial arms be marked with the maker's name, so many were not.
Just another FWIW, a revolver almost identical to yours was selling in the Alfa catalog in 1911 for 30 marks; a single action Reichsrevolver was 60. For comparison, a Colt New Service was 128, a Luger with shoulder stock, 150.
Jim
|