One set of three vintage  plastic guitar knobs in a chrome color - tophat shape. 

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A set of 3 - look matching to me - guitar knobs.  Look a bit like tophats.

The are made of shiny chrome color plastic.   Have a little dot on to to indicate where they are pointing.  A little over 5/8 inches tall.

They have some chrome loss and wear.  

Please see photos. 

These came from the estate of a man who repaired and collected guitars.  I do not know what they fit.   Let me know if you need more information.  I have others I'll list as time permits.

Lot 3 for my records.