Water gauge glass, D4, D6, D8, D10, D101, D106, D365-D417, D52
Water level glass with diameter 27 mm with screws, nuts and gaskets for the stationary steam engines:
D4
D6
D8
D10
D101
D106
the mobile steam engines
D365
D395
D375
D366
D396
D376
D368
D398
D405
D495
D415
D406
D496
D416
D417
and the ship's steam engine:
D52