CD 1052 (base) ST. LOUIS MALLEABLE CASTING CO / ST. LOUIS (Skirt) D-518 // MADE IN U.S.A. -- still has hole sealed -- cool amber -- flat chip on top, couple pings and some areas of dullness (excellent for a dump item) -- $170 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 now accepted - I'll provide instructions. I'll also be handling all the packing and mailing.