Frank S Betz Static Machine, Scheidel Piffard Hyperstatic Transformer
20160325_212920
55
20160325_212920(0)
56
20160325_212923
57
20160325_212945
58
20160325_212946
59
20160325_212947
60
20160325_212948
61
20160325_213028
62
20160325_213029
63
