Don Chiasson
Full Member
- Jun 27, 2013
- 163
- 84
- Primary Interest:
- All Treasure Hunting
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It looks like some kind of filter . Might be like a screen material plugged up with lime .
I so want to say a whistle, or part of one, the kind like police and air raid sirens use (Only much smaller like a toy). The faster the air flow through it the higher pitch sound that would be created. I think it is the insert and missing the tube/cover. can you place it inside of a straw maybe and blew into the straw (plastic end out)