This one has far less base chipping than most. What it does have is associated with the thin over pour. There is a tiny pin head size flake off the edge of the crown / dome, barely noticeable.
I am looking for the following: OUTSTANDING - SUPERIOR CD 147s or 178s, anything with GHOST EMBOSSING, PORCELAIN EGGS, side EMBOSSED porcelain STRAINS, smaller (2 ¼" X 4" minus) Colored Porcelain SPOOLS, any odd colored porcelain insulator, HEMINGRAY CD 208s I don't have, two piece TRAMPS – Glass or Porcelain, CALIFORNIA CD 102, 112, 121, 134, 145, 152, 160, 161, 162, 166, 178 in color I don't have (there are lots of them), POSTAL 145s or any POSTAL type from other manufacturers (especially WGM), Colored or Odd Ball PORCELAIN LAG screw dead end, CD 121 AM. TEL. & TEL. CO. EIN   , any PAT. APP FOR (or similar spelling), any DEC 19, 1871, good colored CD 252 or 292, any CD 262, 267or 267.5, good colored Radio Strains – Porcelain or Glass, any Insulator BRACKETS, 162.3 STAR in better color, any UNUSUAL Odd Ball STAR, HEMINGRAY CD 162 in 7-up Green. There may be more that will tempt me.