From Harry Hallam:

I recently came across the insulator on the description sheet that is reproduce on the next page. I feel quite sure that other collectors would be interested in knowing of its existence. View Image  

I believe that Mr. Woodward mentions the patent date on page 10 of his 1967 Report.  He notes that he was not sure whether it was put into commercial use or not.  This one was dug up in a very old areas in the Philadelphia suburbs, so it would be hard to say if it was just a tester or actually in widespread use in the area.

I thought after you had finished with the description sheet you might send it along to Mr. Woodward.  I feel sure that he would be interested. It seems to fit his description to a tee.

Naturally, I would be interested in seeing if any other collectors might have one.  I haven't yet seen it listed in any publication other than Mr. Woodward's short patent description.  I hope the illustration and information is useful.

Below are drawings from Duane Giarantana of San Jose, California.  Has anyone ever heard of these"  Do you have any information on why they were made, what for, and so on?

We recently received this picture of the J. S. Keeling from Ross and Eileen Sayer. They wanted any information we could give on this beauty. We contacted Dave Delling on this, as he has researched unthreaded and old insulators more than anyone else we know. This is what we can find out about this insulator, and we will use Dave's answer word for word:

"Here's what I know about Keeling: It's all based on advertising that we have on microfilm. Apparently in 1865 the original Tillotson & Co. was taken over by J. S. Keeling at the 16 Broadway address. The advertising indicates that Keeling was probably a former Tillotson employee--he handled all types of telegraph supplies and not only insulators. He probably did not manufacture the insulators, but I don't know who did. The Keeling firm advertised itself as 'The Great Depot of Telegraph Supplies'. Keeling ads disappear sometime in 1866, and we've seen no later reference either to Keeling or the 16 Broadway address."

"Now for the confusing part: Early in 1865 L G. Tillotson & Co. started advertising at the first of several Dey St. addresses--he had the full line of telegraphic goods like Keeling, and it appears that the two firms were in keen competition. At any rate, T. G. Tillotson & Co. prospered, and apparently the Keeling enterprise fell by the wayside. Why the Tillotson firm moved and changed names in 1865 is unknown."

        2-3/4" across base, 4" high