The First Known Patent for an American Escargot, Snail, Referee Type Whistle 1869 USA Patent , Early American whistles (1) A.Strauss

Pat. # 91,704 June 22 ,1869 .The whistle is made of a tin metal sheet .
I found the actual sample in 2005

1869 First USA Patd. for referee whistle whistle museumDrawing of the Patent, originally designed to be made in large size as steam whistle of brass, or a small tin mouth whistle.
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