One set of 3 vintage guitar knobs made of ridged aluminum with a black top.

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Three vintage guitar knobs.

These feel like aluminum.  Have ridges.  And screws in the sides.   Black thin topper - coming loose (glue it, if you want). 

Approximately 3/4inch x 9/16 inch

Some scratches - especially near screw holes.  That black plastic topper coming loose.  See pics. 

I do not know exact age or what they fit.  I do not know where they were made.  From the estate of a man who collected and repaired guitars.

Lot B