Here is a fine looking CD 188, previously listed, insulator, embossed PAT`D over NOV. 23D 1886. I say the color is at least emerald green, maybe even darker. The condition is excellent. There is a trace of factory roughness on the inside edge at the very top of the insulator. The price guide sets a value of $75 to $100 but you guys don`t want to pay the much, even if it is a great looking insulator. My delivered to your door price is $45.