mirror finish round lightning rod ball where the mirror is on the inside of the clear glass ball -- these are referred to as "Mercury" balls -- caps intact and no damage other than the mirror finish has started to discolor in some areas. $25 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 accepted - I'll provide instructions. I'll also be handling all the packing and mailing.