I found this derailleur at a thrift store for €2, to no one's surprise I bought it. I'm not all too familiar with derailleurs yet as of now though, hence I was wondering if anyone knew anything about this specific one? I'm guessing it's from around the 70's, but I could be way off as I'm frankly just guessing. It's in perfect condition, doesn't look to have been used much, if at all.
Any information is much appreciated!
by randomphonecollector