Interesting article from a 1949 Mechanix Illustrated... http://tinyurl.com/37ff9x
Dave --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
Interesting article from a 1949 Mechanix Illustrated... http://tinyurl.com/37ff9x
Dave --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial