Just thought I'd upload Jack Foote's photo, modified to show the SUPER POLE "zoomed-in" for closer analysis. I'm thinking the top, dead center piece might be a glass Locke No. 14 in Light Aqua? I believe the others at left are the same piece.. Are we sure this photo is from 1889?.. If so, that would narrow the field of what any of these insulators could be (no McLaughlins, etc.).. Are the words, "STUDIO GRAND." handwritten diagonally in the lower right area?