Well, the smaller part is. Its the base plate for a REVI C/12 all sub types. The other I can't say for sure...looks like a revi part. Could you clean it up a little more?
post #103 pic 2 and 3 part of Revi 12\c Its the befestigungsplatte or mounting plate.
post #103 pic 1 and 4 also part of Revi 12\c part of the Lampengehause or lamp house
Post 112 pic 1 part of Revi 12\c Its the befestigungsplatte or mounting plate
Post 112 pic 3,4,5,6 mg turres ball connect (ball clamped in the mg to the stand)
Post 113 as seen on a EZ40 Schmalbildkamera klein (?)