Very nice CD 252 Knowles No. 2 cable with the Patented June 17, 1890 date. [030] embossing which is the most embossing for this CD for this manufacturer. Amber swirls travel through the embossing on both sides and then ...

Went back to a local thrift store Friday. Asked if they had insulators..."yep got an old box of dirty ones in another building". The heart was pumping, than I opened the box. Not only dirty but covered in bird ...

Good condition. Small base slice on the bottom. Mold line over done. Dome embossed W B Brookfield 45 Cliff St. NY. On the rear dome is Pat Jan 25th 1870. Base embossing is Postal Tel Co Asking $10.00 plus actual ...

Here is a CD 128 Hemingray E 14B in a nice, clean opalescent color. Minimal amount of that typical darker surface staining. Two nicks to rear base edge, one in front. Biggest issue is an internal crack that starts in ...

Showing the pinholes of the CD 202 K's. The top of the right hand one is messed up (some kind of molding anomaly) so it does not show a clear "dot". The left one shows hints of an Elmer ring, but it appears ...

Here's another old crude embossed HGCO. Again, no period (cold mold pour, so it looks like one).

Up for your viewing is a CD 133.1 in an off clear with a light purple tint. Embossed Patent Dec.19, 1871. An insulator not usually offered for sale. Condition is very good with a very small chip on the lower wire ridge ...

OK, here is what is probably the last-produced mold type of typical Hemingray-made beehive with the lettering "H.G.CO." on the side and "H" on the dome. The lettering is the typical "Stamp" ...

... ; . I have seen at least 3 different molds with this same anomaly....... and there are probably many more than that. The embossing height on ...

... quot;graceful" effect. Some of the molds with this lettering variation, for some reason, do NOT have the usual "H" on the dome. ...

... " look compared to the typical molds . Embossed lettering on this particular insulator is 10 mm ...

This is what probably would be considered "script" style or "Covington" embossing. Crude lettering; the G is shaped similarly as on the older "Petticoat" embossed H.G.CO. beehives. This may ...

This nice Mickey has a very odd amber patch right at the base. It looks like something you could clean off but it's in the glass. Something entered the mold just at the end of the pour is my guess. Bubble in one ear ...

A nice pair. (Left) CD 205 is pretty much mint - $10 ; (right) CD 125 has a 1/8" wire groove flake at the left mold line and a few dings - $15. Or the pair for $22 Buyer pays actual USPS shipping (probably flat ...

... not, the colors are different, and the molds used for these insulators are different in shape ...

Here's a CD 133 Crown embossed W. BROOKFIELD NEW YORK back a single letter "B". This insulator was made from a two-piece mold, has the mold line running over the dome. The only place I ever heard of these ...

Mint except for one very tiny mark on the upper horizontal mold line. You almost have to be looking for it to see it.. Price Guide value is $50 to $75. More pictures available on request. Asking $55 shipped anywhere in ...

Here are four little Brookfields being offered as a group. The first ia a f-skirt Brookfield with sharp drips in aqua. There is some light nibbles and a wire rub on the right lower wire ridge, and about eight nicked ...

Here are four little insulators being offered as a group. The first is a single Star in aqua. It has major dome glass and two bumps of glass on the side crown seen at the left. Just a pinhead fleck on the base edge, and ...

"Taken from Birth of an insulator an OB Booklet " Here are suspension insulators in the mold

"Taken from Birth of an insulator an OB Booklet " Here an employee cuts clay pugs for balling before entering a mold.

This is a similar mark on this CD 165.1 Whitall Tatum. This is a larger arc. The explanation is the same: During the molding process, when the glass flowing into the mold was snipped off, the end of that piece of ...

This is an example from a 1939 CD 115 Hemingray. The line is barely raised, and definitely not a "crease". You can see it making an arc over the dome. During the molding process, when the glass flowing into ...

These two have eluded me in identifying either their U# or their manufacturer. They both have fully glazed pinholes. The smaller one on the left has the mold line over the top. The top of the pinhole has a bullseye set ...

... were perhaps using another company's molds. In this same catalog it also shows that they made glass insulators. Their glass insulator model ...