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The most common color amongst collectors is Colbalt blue. That’s one particular of the colors Hemingray offered for their insulators, there are thousands of them out there. But power lines glass insulators are so popular they are all snapped up promptly, everyone wants them. To make insulators they utilized a lot of cullet, or recycled glass, and each and every batch of glass has some form of cullet in it mainly because it was a lot much more workable.











  • Most of the Hemingray-19s were made in aqua and they are very prevalent.








  • The “brass bushing” or “thimble” insert was put in location by machine, at the time the insulator was created and the glass was nevertheless quite hot.








  • And no matter how prevalent a model it is, that specific color makes it stand out in each and every collector’s eyes.








  • The last digit is the year the insulator mold was produced.










When dating a glass insulator, make certain you count all the dots about the year code and add them to the date of the mold manufacture. Carrying out this will assist you figure out the precise production date. This glass insulator is in pretty excellent vintage situation. The insulator is embossed with Hemingray 9, Created in the USA. There is an area of rust on the glass from the old wires that have been on the insulator. Please use the ZOOM tool to get a close up view of this item and its situation.



Lot # : 289



Uncommon, uncommon colors on Hemingray 42 can instantaneously transform it into a collector’s item, and increase its value tenfold. Examples of rare colors include two-tone shades, deep amber, and deep red. Glass Insulator Worth Old glass insulators can variety in worth from $two up to more than $400. Hemingray was most effective identified for creating telegraph and phone pin insulators used on utility poles. Oxalic acid is a trusted cleaning agent that absolutely removes rust and instantly adds shine to glass insulators.







I don’t profess to be an electrician, scientist, or engineer I’m just a glass collector . The word “Insulate” in this instance generally just suggests to assist avoid, or drastically lessen electrical present loss over distances. If there had been no insulators, the electric present passing through the metal wire would “leak” away at every single point where the wire was touching a post or pole, specially through damp weather. Soon the present would be reduced to practically practically nothing, and it would be impossible or challenging to carry the electrical existing extremely far. The material GLASS itself is an insulator, it resists the passage of electicity.

The transition to porcelain began in the 1950s and by 1970 they have been quite a lot done. Shawn, with a ground lip, and in an ordinary aqua colour (some shade of light blueish-green), your jar most most likely dates from sometime in the 1870s-1900 era. However there is no way to pinpoint the year any one of the old “MASON’S PAT NOV 30TH 1858” jars had been produced. Quite a few of the ‘1858’ and other Mason-variety jars are located with “BALL” or “ATLAS” screw-kind zinc lids , which was a fairly typical replacement lid for jars of that size/variety. Old Insulators Created From a Selection of Glass Sources These insulators are really collectible because of how uncommon they are.

They are getting close to one hundred yrs old and would like to know if I just have some neat craft products or one thing to look extra into. Voltages insulated by this insulator would most likely be three,800, 4,800, 6,800 or 7,200 volts. The bigger insulator to the right could in all probability handle 13,800 volts or so since it is larger and has far more skirts, but the shape suggests it may possibly be more proper to use as a dead-end insulator. Sign up for our email list to get updates on our upcoming auctions.



Pristine Condition



Guarantee that your insulators are in excellent to superior situation and watch their monetary value swell. We’ve curated a list of the ten most beneficial glass insulators around. These insulators are highly sought just after by collectors and every person. Glass insulators were utilized for telegraph and telephone lines to help communication in between states and prevent wires from touching wooden poles. Today, based on the colour, age, and good quality, the price tag of these insulators ranges involving $two-$400.



Cd 121 Aqua R Very Good Jr Antique Glass Telegraph Insulator! Denver Piece! G7



This lot of 9 Hemingray-42shas a greater markup than if they had been all sold separately. Sold individually, Hemingray 42 could not be that beneficial. But some collectors decide to sell several insulators as element of a bigger collection.