CD 121 (base) THE STANDARD GLASS INSULTOR CO. / BOSTON MASS -- great blue shade! -- three tiny flat base flakes partially hit "INSULATOR" embossing on the base, small open bubble on base (see pics) & tiny WG rub -- this is one of the toughest tolls to find!! $1050 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.