The Oakman signal is in good overall condition. There is a shallow base slice, a thumbnail shallow wire groove slice and a few other small dings. It still displays very well and has the classic Oakman Diamond on the done The second insulator has a large mold defect in the upper dome partially open. There is a internal stress crack behind the defect with no glass missing and very hard to see. There is a small fingernail size slice on the inner skirt and has the pennycuick button in the pinhole. This insulator fits the measurements of a CD 166 but there is no listing for an unembossed insulator. Asking 50.00 delivered in the US, will work with Canada buyer