Radio strains as follows -- $25 plus actual postage for all (left to right, top to bottom)

3 1/2" (end) E.C. BRACH // NEWARK N.J. -- no issues

3 3/8" no markings - pinprick

3" no markings - no issues

3" no markings -- stress line at one end

4 5/8" no markings -- no issues

3 3/8 no markings - no issues

3 1/8 (end) KNOX / KNOX -- no issues

3 1/8 no markings -- tiny flake at the end

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.