The larger one is a glazeweld, U931B, and this same insulator also comes in an unglazewelded version. This one in near perfect with only a small surface flake on the bottom of one of the inner petticoats for $25 plus shipping. The smaller guy I believe, that based on my measurements of 5.20" by 4" tall and what the porcelain guides say is an unlisted or variant piece. It has close to the measurements of U709A but a large cable groove. I haven't personally another like it. At any rate, it's about mint and has a very pretty glaze, and can be yours for $40 plus shipping.