The glass insulator pictured here, a blue aqua or “Hemingray Blue” CD 257 “Mickey Mouse”, is a type made for electric power lines, and was made by the Hemingray Glass Company at their factory that operated in Muncie, Indiana.That particular example probably dates from sometime between 19.I’m also in the process of adding various articles to this site, discussing various glass companies, different types of glass and glass items. Bottles, candleholder & insulator " data-medium-file="https:// data-large-file="https:// class="alignnone wp-image-857 size-full" title="Glass medicine vial; beehive insulator; votive candle cup; Bromo Seltzer bottle; ink bottle; Bixby shoe polish bottle" src="https:// alt="small glass vial, Beehive Insulator, votive or vigil candleholder,bromo selzer, ink bottle, shoe polish bottle" width="600" height="201" srcset="https:// https:// sizes="(max-width: 600px) 100vw, 600px" / The glassmaking industry in the US is a huge field that dates back to the 1600s, and covers a vast array of items and applications, including both handmade and machine-made glass.According to historian Rhea Mansfield Knittle (, 1927), one of the earliest glass manufacturers in the United States (not counting the unsuccessful attempts at Jamestown in 16) who may have produced considerable quantities of glassware and actually met with some degree of success, was Johannes Smedes (or Jan Smedes), who operated an establishment — probably making bottles for the most part– sometime in the period of 1654-1664 at New Amsterdam (now known as New York City) . What elements/chemicals were included in the glass “recipe”? If it’s an older, hand-blown bottle, who was the glassblower who fashioned it?I hope this site will be a help in your quest to discover more information concerning the wide world of glass and glass manufacturing.Please be sure to bookmark this site, and return often!
There’s alot of great information already available on the web, as well as in books and magazines, but I’ve tried to gather some of the very best, basic info together onto this site, in particular concentrating on identification marks found on bottles, insulators and tableware.
I hope to add more information as time and energy permits! factories, a few Canadian and Mexican factories are listed also. If you have additional information, please contact me (at the email address listed at the very bottom of any page on this site) as I’m continually looking for the most available on these companies.