Speed knobs (imperial size)

A set of four knobs (or purchased separately) in a wide speed style as found on many Gibson styled guitars.

The reliced version are reliced from the factory, and perfect to add a vintage look, or maintain it on an already aged instrument. These have embossed yellowed numbering for an authentic aged look. 

These are imperial sized for installation on potentiometers with 24 spline knurled shafts (CTS, for example). The reliced knobs don't have as much wear on the top as the picture makes it seem - the lighting makes it far more visible.