The topwad will have the load data, IE: powder type and charge weight, shot size and charge weight, and manufacturer. The Remington star crimp arrived in the late 1930s and was covered with a paper circle with load data. I do not know when the load data moved to the side of the hull. Black powder exudate can be carefully scraped from the brass with an instrument made of copper or brass. Attempting to clean the paper hull with anything will result in ugly stains.
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GMC(SW)-USN, Retired
'Earnest Will'
'Desert Shield'
'Desert Storm'
'Southern Watch'
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