CD 106 O.V.G.Co. Blue Embossed on the (F-Skirt) O.V.G.Co. The abbreviation for Ohio Valley Glass Co. Two little dings over the "O" in Co. is all that I see in this Beautiful Blue insulator.---$8.00--- Buy with confidence! … We do not sell altered insulators! Buyer to pay all shipping and insurance costs (U.S.A. and Canadian shipping only). PayPal, Money Order, or Cashier's Check. Heck, we will even take your personal check if we know you.!!! Don't wait for a sale it's not going to happen.