| (Dome) |
Embossed on the very top of the insulator. |
(F-Crown)
(R-Crown) |
Front Crown, Rear Crown.
Embossing is above the wire groove(s). |
(F-Skirt)
(R-Skirt) |
Front Skirt, Rear Skirt.
Embossing is below the wire groove(s). |
(F-Umbrella)
(R-Umbrella) |
Front Umbrella, Rear Umbrella.
Embossing is located on the Umbrella.
Used mainly with transposition styles. |
| / |
Indicates a new line of embossing. |
| {MLOB} |
Mold Line Over Base. The mold line continues under the insulator and meets at the inner edge of the skirt. Usually found on some earlier Hemingray insulators. |
| ['...' blotted out] |
Indicates a blot-out (a spot where an embossing was originally, but was later removed from the mold and filled in, often leaving a tell-tale rough spot in its place.) |