Here's a set of 4 Hemingray No 12 patent insulators that all have some sort of embossing error on them.3 of the 4 are unlisted in the online browser and spiral bound. The A in HEMINGRAY is a triangle. The middle crossbar in the A is all the way down at the base of the A's legs. The others are 12 over a 9,M under the A in MAY(unlisted) ,"No" reverse"oN" underneath No(unlisted).All are in very good condition, no cracks, chunks, major damage but do have a bit of light drip flaking, a few tiny flakelets on the WG lip and some fleebites and pecks in various places. On the one with the reverse No there are 2 small clamshell chips on the base, these are small and shallow. More pix on req of embossings. First mail to me... $20 for set of 4 plus actual shipping. Please note:5 are shown, one is a duplicate A over M in MAY and has some light base chippage. It's $3.