DB renumbering can get confusing, as preserved locos tend to be restored to their pre-1968 classification and number. This site, which allows entry of any number carried through DRG, DB and DR times (minus check digits) is very useful: http://www.beitraege...d_datenbank.php.
Both 012 061-8 (as 01 1061) and 012 075-8 (as 01 1075) have survived. The former has been at the Deutsche Dampflokmuseum, Neuenmarkt-Wirsberg, since being sold in 1975. Here it is, inside the roundhouse, in 2002.
1075 is part of the collection of the Stoom Stichting Nederland, Rotterdam. Visiting while open to the public in 2001 (but not an operating day), conditions were cramped even for the widest lens (24mm or 20mm?) I had with me.
In response to John (Allegheny1600), I did see some West German steam in the 1970s, but I never visited any of the places that became hotspots for enthusiasts (except afterwards). The steam I saw was in the course of making two family package holidays in Czechoslovakia from passing trains while travelling through West Germany en route. At the time of the first, in 1973, there was quite a lot of steam spread along the route (mainly class 50s), not always photographable - particularly with the Kodak Instamatic I had at the time. (Like Trev52A I was also shooting in square format - but there the similarity ends!)
Two years later, I was now equipped with a 35mm SLR, but the level of steam activity had declined severely. From memory, the only decent sighting was of an 052 awaiting departure on a freight approaching Schirnding (the frontier station with Czechoslovakia) - and I wasn't ready with my camera as we passed it. My last encounter with real steam in West German was on the return leg, when a light 023 passed on an adjacent track whilst we were stopped at Saarbrücken around midnight.
From 1973, here is 051 210-4 (with cabin tender) at Kirchenlaibach, in 1973.