FrictionCalls

Charlie's Custom Calls offers the following friction calls:

Single Surface Double Surface
($20.00 ea.) ($25.00 ea.)

Single surface calls are normally a slate friction surface with a sound board of slate or
glass. Double surface calls are normally a slate surface with your choice of a second
surface.

Surface choices for Charlie's friction calls include:

The slate used in my calls has been mined at a quarry site located in the Slatebelt area
of Bangor, PA. Bangor slate is known worldwide as the finest slate available. It is
interesting to note that nature has taken over 400 million years to create this stone. It
began as a shallow inland sea covering eastern Pennsylvania. As time passed, tons of
sediment slowly layered the ocean floor, eventually becoming thousands of feed thick. It
took nature millions of years to compress this clay-like material into beds of hard stone.
Here it would remain undisturbed until its discovery in the early 1800's. Slate's unique
layer upon layer formation allows it to be split into thin sheets of durable, useful stone.
Man has developed many uses for the slate including roofing, blackboards, tile, etc.