Wow...
What a slump I've been in... several hunts and nothing worthwhile in close to 2 months!
Anyhoo, today I decided to hunt an old hydro tower line erected in 1928 and removed in the 70's. I had reasonably good information as to the location of two towers, but when I got there, nothing remained. For kicks and giggles I decided to walk a nearby "transportation corridor" that would have had numerous different types of insulators used along it. After turning up a couple of broken WT CD155's, something sticking out of the mud caught my eye. It looked like a porcelain lightbulb base. Decided to dig it up anyways, just in case.
Well, the topic line sums up what it really was, although unbeknownst to me until I got it home and saw the glazewelds. Oh, and yes, it's not a complete specimen, but it's most of a Boch's pre-patent U-928! Definitely gonna hunt this line some more.
I've enhanced the embossing with a red marker in the pics. It is so faint, that most of the word "insulator" is not visible at all.
Happy hunting!!