Insulated Nasal Glass Electrode — Historic Form

A closer look.

An overlooked piece of the electrical cabinet

This is a small object with a very particular outline. The stem narrows into a gently angled terminal, giving the whole piece a different character from the familiar surface or comb forms. In the old catalogues it sits among an extraordinary variety of attachments. I find that variety compelling: each shape is a trace of a maker thinking through the possibilities of the apparatus.

Its place in the old catalogue

Master placed the nasal form in its insulated specialist range.

A small piece of a bigger machine

The glass belongs to a larger arrangement of generator, resonator and handpiece. The head gives each form its distinctive working geometry: a broad face, a small cup, a row of fingers or a carefully curved stem. For a collector, those differences are part of the engineering story as much as the glowing glass itself.

Finding the right example

This listing is for historical-form identification and collector or sourcing enquiries. Exact construction, connector and any surviving insulation are checked against an individual example.

Enquire about this form

Tell us the maker and model, add a photograph of your handpiece and the attachment you are trying to replace, and we can discuss identification, sourcing and availability. The exact example and connection details are agreed individually.

About the illustration

Generated illustration of this historical electrode form, created for Forgotten Frequencies; not an actual stock photograph. The violet glow is artistic. The supplied example, gas fill, dimensions, connector and availability are confirmed by enquiry.

Historical reference

Master No. 19. The Master Violet Ray catalogue · Renulife Electric Company, 1919 manual