I previously posted in the help section asking collectors to conduct a "G.E. Pin Hole Check", but no one e-mailed saying they have one like mine. I did get some replies regarding removal of a standard wooden pin that was stuck in this different tapered design, which involved placing the pin inside the chuck of a large lathe allowing me to get enough torque to unscrew the insulator without crushing the wood (A regular vise would have crush the wooden pin). I also wrapped a rubber inner tube around the insulator to get a good grip on it.

I believe this one has the same embossing as CD 134 [050] with the exception of having machine screw thread with a blunt tapered point. All attempts at classify the threads has failed because people keep pointing out it does not meat all the criteria for Pennycuick . The threads fading out toward the top is typical of American Insulator Co and some Oakman products, but again does not meat all criteria. Therefore I am back to classifying it as having machine screw thread with blunt tapered point.

However, I am interested in seeing the threads on a G E Co CD 134 [030] described in the price guide book as being "Pennycuick style"

I guess this is how you would classify this one of a kind insulator if it was in the book:

CD 134 [055] (F-Skirt) G.E. Co./[T-H.E.CO.' blotted out] {machine screw thread with blunt tapered point} {Brookfield product} {MLOD} SB

I did however locate a W. Brookfield CD 134 [080] with similar threads and collapsible mandrel parks on the top of the pin hole.

http://www.insulators.info/pictures/?op=add