CD 268.5 (base) THE STANDARD GLASS INSULATOR CO / BOSTON MASS (skirt) PATENTED / AUG. 8. 1893 -- blue-aqua with a little amber -- very nice for these but issues as follows (see three pics)

Right: there is a pot-stone bruise above TD in Patented and a tiny base ping

Middle: a small pot-stone bruise and a skirt peck

Left: a tiny peck and an small open bubble on the base

Overall a super nice piece!! $3250 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.