Mystery optics stowage box

BCA · #1 11-02-17, 23:44

Way too much time on my hands! Sorting through Stuart M3A1 parts but this is not Stuart. Evidently British, 1943, has felt padded areas for two rectangular items that I presume to be prisms or protectoscopes. Made by R C &Co, 1943 with a part number TP 4220. Can anyone ID it?

Jason Ginn · #2 12-02-17, 01:03

Looks like the Churchill spare prism case. with the holders for the cleaning brush on the front.

Item 46 in the Churchill MK3 stowage dia.

BCA · #3 12-02-17, 01:13

Thanks Jason. I'll try to trace the part number with your excellent lead.

tankbarrell · #4 12-02-17, 09:56

I can confirm it is the 'bin, spare prisms' used in Churchill.

Part no. LV1/VH TP4220.

BCA · #5 12-02-17, 14:03

Thank you Adrian and Jason: a visual ID and a part number ID. Perfect.

BCA · #6 12-02-17, 14:11

It is a real challenge to stump the MLU "Brain Trust". I hope to find a few more items that have puzzled me over the years. ...Brian

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