Here is another hard to find insulator. CD 143 NO EMBOSSING – CANADA [030] Aqua, Double Threaded, Some roughness on the inner and outer sharp base edges and 3 very small (1/8" or less) dome pecks. Asking $450 Plus shipping.

Shipping will be at actual cost (now using PirateShip to reduce shipping costs). I will combine shipping on multiple purchases where practical. I accept PayPal – Friends & Family, money orders, or checks.