Here's a closeup view of my favorite marking on a porcelain insulator. My good friend Jeffrey Kraemer and I hunted along an early line in Alabama that used white U-928 Boch Patents originally. We only found shards of them because they were replaced with Thomas glazewelds early on. I really liked the markings these have on them and I had hoped to find a white one with a nice marking on it one day. Who knew I'd be so lucky to get this awesome example from my good friend Matthew Willett. I love it and it's one of my favorite insulators in my collection! https://www.insulators.info/pictures/?op=original&id=585167723