4 insulators found in two different flea markets. CD 145 O.V.G CO, CD 153 GAYNER NO. 48-400, CD 216 Whitall Tatum 512U (dark blackglass, can't get much light to pass through it, but shows up deep amber where light does pass), and a CD 168 (F-Skirt) HEMINGRAY MADE IN U.S.A (R-Skirt) D-510