I collect Oberammergau items,I just bought 4" by 2 1/2" CDV's of the 1870-71 Passion Play with an embossed stamp on the photo that is Gemeinde Oberammergau.gemein de in german means community,municipality or parish according to my dictionary.My question is were these sold at Oberammergau and are they from the 1870's or are they newer?