- Home
- Database
View All Insulator Designs
Below is an index of all insulator designs currently known or suspected to be manufactured by the Hemingray Glass Company, grouped by ID system and design number.
Jump to Insulator Design Category:The CD numbering system was originally created by N.R.Woodward and is currently maintained by Dario DiMare. This is the main numbering system used by the insulator collecting hobby for glass insulators, and the majority of Hemingray's pintype and spool insulators fall under this numbering system.
The SI numbering system was created by Don Briel to catalog all special and private issue insulators. Hemingray's salesman sample insulators fall into this category. (Note: This section only contains Special Issue products manufactured by Hemingray. For modern Special Issue insulators, please see the Fakes and Reproductions page.)
The BT numbering system was created by Christian Willis to catalog all Hemingray glass bushing and tube insulator designs, as they are not currently assigned CD numbers.
The UD numbering system was created by Christian Willis as a temporary designation for any Hemingray insulator designs that do not fall under any other design number.
The ST numbering system was created by Raven Kotlarsky of AllInsulators.com in order to catalog suspension insulators.