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					Originally Posted by kronckew
					
				 Ferric powder measurers would not be terribly bright as it can spark when the parts rub, non-ferrous brass is much safer and cheaper than bronze. Probably took a few missing fingers and other parts before the word got around, maybe why there are fewer old ferric ones. They blew up. | 
	
 In Afghanistan and now you can find a lot of ferric powder measures. I think there were even more of them, but the iron perhaps is destroyed by rust ...