Listed is a CD 122 (040) embossed McLaughlin and on rear skirt NO.16 in light green maybe a touch of mint green - This McLaughlin has the round wire groove. Insulator has one small flake on top wire rim on back side about 1/16 inch and very small ding on dome nearly impossible to see. Another seldom seen insulator. Asking $55 plus shipping NOTE: Second picture shows rounded wire groove better.