Development process of the Parthenon .... vintage jigsaw puzzle - updated 16th Nov.

Since the middle of September I am busy assembling vintage jigsaw puzzles (age 25 years and older). I love sharing the event that takes place in the german forum for jigsaw puzzle enthusiasts - by now 25 participants assembled approx. 65 jigsaw puzzles. These are mine:

Since 23rd October I work on this one:

 =1988

completed :-)