CD 253 [020] (F‑Skirt) KNOWLES CABLE/INSULATOR/"PATENTED.JUNE. 17. 1890" SB Nice soft blue with some small white flecks of snow and olive swirls. One of a few insulators that actually has the word 'INSULATOR' embossed on it in a prominent place. Some very minor surface blemishes from use. Honestly about as nice as you will find. Nice character power piece.

$125 plus shipping. Check or PayPal no fee option welcomed. Satisfaction guaranteed but shipping at your expense. First email as always!