These Copper Topped insulators have just been cleaned and looking great I thought I might add them to the Picture Gallery. The left one is a CD 344 and embossed with a sand blasted logo ARMOURLIGHT, The middle one is a CD 370 and not embossed and was the largest glass insulator used in Australia and the right one is a CD 344.2 and also not embossed with a makers trade mark. I will also include a photo from the top.