CD 257 HEMINGRAY // PATENT / JUNE 17 1890 MAY 2 1893, large SDP, nice bubbles in the glass -- VNM -- $40 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.