Insulators as follows - actual postage additional:

CD 218 HEMINGRAY-660 // MADE IN U.S.A. -- Corrugated base, VNM -- $8

CD 219 HEMINGRAY-660 // MADE IN U.S.A. -- Corrugated base, VNM -- $5

CD 122.4 PYREX / REG.U.S.PAT.OFF. MADE IN U..S.A. // 2 / PAT APPD FOR - cool looking piece!, VNM -- $5

CD 129 KERR T.S. // MADE IN U.S.A. -- VNM -- $5

Take all four for $18