These Shermans had a hatch from a commanders cupola placed in front of the driver's position.
It's been suggested to me that this was not a scrap or spare item but taken from the cupola of the actual tank it was used on. Anyone have more info on this, particually why would you take a hatch from the top of the Tank and place it in front of the driver, wouldn't a steel plate or spare track protect as well(if not better)?
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