Alembic "Witch Hats" Knobs

These are original Alembic Witch Hat knobs. They are slightly recessed (as shown below),
have the white pointer and two allen set screws. They are intended for 1/4" pot shafts, but
can be used with split shafts if you reinforce the split as shown below.

Asking $20 for the set, includes U.S. or APO shipping.

Alembic "Witch Hats" Knobs Bottom View

Split Shaft Reinforcement

A piece of sheet plastic, or other relatively non-compressible material inserted into the split
will allow the set screws of the Witch Hats to grab and not close the split. Without this mod,
the knob will wobble when rotated and likely come off at some point.