Here is an abandoned insulator collection from an AT&T employee, former lineman, who worked in California and Nevada. Typical telephone CD's: CD 154 & CD 155 Hemingray, Whittal Tatum; CD 121's by Hemingray, AT&T and Brookfield; CD 208's by Hemingray; CD 106 by McLaughlin; CD 115 by Hemingray; CD 133 by Brookfield and Elmer, NJ. glassworks. Next photo [id=495677539]