Hemingray.info Glass Insulator Database and More

Welcome to the Hemingray Glass Insulator Database!
We're your number one source of information on Hemingray glass insulators. The Hemingray Glass Company operated continuously from 1848-1972 and was the single largest manufacturer of glass insulators in the world. This web site is dedicated to providing information on every insulator style made by Hemingray.

Latest Updates:

June 2025: See What's New!
Added new and removed embossings to align with the 2023 price guide.
Added BT 2005 bushing.

View All Site Updates

Hemingray Database

Here's where you can browse and explore all of the glass insulators known or suspected to be manufactured by Hemingray. There are currently different insulator designs in the database.

Hemingray 101

Are you new to insulators? No problem; I was once a beginner too! Here are all the basics to know about Hemingray glass insulators. Get answers to frequently asked questions, find out which insulators are the most common, and much more!

About Embossings

Did you know there are over embossings across all Hemingray glass insulators? Here's where you can learn more about the various aspects of Hemingray embossings - what all those numbers and dots mean, how many mistakes they made over the years, and more!

Special Interests

Insulator collectors like to specialize in lots of different categories. Here are some of the categories that I have enjoyed specializing in over the years!

Other Features

Find out more about this site's webmaster, Christian Willis, his involvement in the hobby, and more.