Here is a call I recently sold on ebay. It is Myrtlewood Burl with a brass outer and glass inner and a Sweetgum striker. Sounds similar to copper but with a bit deeper pitch and real raspy.
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I do like that pot call.
pretty neat
Sweet looking call!
Pretty call!
That looks really nice...I have to say though I've never heard a brass pot before
Nice
Great work & very unique piece of wood there
very cool
nice call