Insulators as follows -- actual postage additional:

CD 230 LOWEX / REG U.S. PAT. OFF. // 512 / 10 - MADE IN U.S.A. - 0 -- olive amber -- tiny peck at the ear end -- $12 (not sold)

CD 230 HEMINGRAY / MADE IN U.S.A. // D-512 - dark olive amber -- VNM -- $18 (SOLD)

CD 230 HEMINGRAY / MADE IN U.S.A. // D-512 - near blackglass, need very bright light to see through -- flat chip from base - cool white coloration on the glass surface -- $75 (SOLD)

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.