Insulators as follows - actual postage additional:

CD 145 Star -- cool green mix -- nice shape -- $8

CD 152 HEMINGRAY // No 40 -- SDP -- a few flaked drips, dome potstone chip & couple pings on back -- $5

CD 100 SURGE / REG. U.S. PAT. OFF // BABSON BROS. CO.. / CHICAGO U.S.A. -- RDP - clear glass -- no issues -- $8

CD 168 HEMINGRAY / MADE IN U.S.A. // REG. U.S. PAT. OFF. / LOWEX / D-510 -- dk. olive amber -- $10

Take all four for $25