Blackened brass set of waterhouse slots for 33mm wide slot marked X 2 3 OX 02 03. Pairs for stereo lenses. set of waterhouse stops
Blackened brass set of waterhouse slots for 28mm wide slot marked f/11, f/16, f/32, f/32, f/44 and f/64. set of waterhouse stops
Blackened brass set of waterhouse slots for 28mm wide slot marked 8 11 32 44 and 8 11 44. set of waterhouse stops
Four large blackened brass stops for 11.8cm slot. Marked 7. No aperture figure. Diameters 11, 10.1, 9.2, and 7.4cm. set of waterhouse stops
Six Waterhouse stops of blackened brass number 1-6 for 42mm slot. Ross and co set of Ross Waterhouse stops
Set of large blackened brass stops in case for 85mm slot. Marked 3, 4, 5, 7, 8, 9. set of waterhouse stops
