These three styles are German insulators made and were exported just to Canada. The top picture is of three different U-2531 pieces. The first one marked Hescho M, the second Hescho H, and the third Hescho. I'd love to get the one with the marking error Hesgho. The other two in the bottom picture is a U-2525 Hescho M and a U-2611 with a three triangle marking/#'s/S. Would love to find any other Hermdort Porcelain pieces I don't have.