These look like new old stock GB-Kershaw shutter and aperture assemblies. Perfect replacements for your worn or broken shutters, or could be used in a diy or pinhole camera project. They all look unused, wrapped in what appears to be the original packaging. Excellent condition, everything works (although I don't know if the shutter is accurate) but there is a little surface dirt and mild corrosion in places. However they'll clean up well. There is no glass, just the shutter mechanism and aperture.
I have stocks of two types:
GB-Kershaw 450 - B, 1/10, 1/25, 1/50, 1/100 & 1/200 speeds. f4.5 to f22 (SKU P-450) 4 in stock. $25ea
GB-Kershaw 630 - B, 1/25, 1/75 & 1/200. f6.3 - f22 (SKU P-630) 3 working ones in stock, plus another four that the shutter isn't firing (probably an easy fix) $20 ea for the working ones, $10ea for the others.
GB-Kershaw shutters
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Free delivery is available in the Wellington*, Hutt Valley, Porirua and Wairarapa regions but it is at my convenience - I can't make a special trip for an item worth a few dollars. I'm usually in these regions at least once every couple of weeks.*Wellington has become a real nightmare to get through and park, so it may have to be a rendezvous in an easier location.