Mechanism & Dial View - Model 20 -Production of Model 20 Started at Serial Number 2000001 and Concluded with Serial Number 2005000.Serial Numbers in this Model 20 Photo Album range from 2000628 to 2004533. Model 1 Model 2 Model 3 Model 4 Model 5 Model 6 Model 7 Model 8 Model 9 Model 10 Model 11 Model 12 Model 13 Model 14 Model 15 Model 16 Model 17 Model 18 Model 19 0-Size Model 20 Pendant Set Model 21 Pendant Model 22 Bridge Model 23 Pendant Model 24 Mechanism & Dial View Model 1 Model 2 Model 3 Model 4 Model 5 Model 6 Model 7 Model 8 Model 9 Model 10 Model 11 Model 12 Model 13 Model 14 Model 15 Model 16 Model 17 Model 18 Model 19 0-Size Model 20 Pendant Set Model 21 Pendant Model 22 Bridge Model 23 Pendant Model 24
