This is our load of porcelain we got from our recent road trip from Eastern, PA. We don't know the U numbers but there is a Glass Lightning Arrestor made by The Line Material Company, one Fred M. Locke signal, two embossed H a105, a newer Chance ink stamped, one westinghouse post insulator, one unmarked Cable top, one Locke Suspension w/ Hardware, and a white funny Porcelain teepee. Which we believe is Canadian.