CD 1038 embossed in a circle on the top - CUTTER PAT APR 26 04 -- ribbed base -- nice as these go with a chip at the wire slot (see red arrow on photo) and the normal chipping at the sharp base edge. $220 plus actual postage.

NOTE: I'm selling these insulators on behalf of the Jim Fielding estate -- PayPal (no fee friends and family) or checks are both accepted - I'll provide instructions. I'll also be handling all the packing and mailing.