Nice green Knox porcelain spool insulator. Not one you see to often. Has Knox 310-W incused on the base. Has a 7/8" x up to 1/4" chip/flake on the lower ridge. Also a 1/8" flake on the base. Really not that bad.

Asking $25.00 plus shipping. Thank you for looking and 1st email as usual. Prefer PayPal/friend but will accept check.