Does anyone have any pictures or diagrams of early iconoscope tubes that used two-sided scanning targets? I am writing a book on early television for a general, non-technical readership and I would like to have an illustration of one to compare with a single-sided target. If it gets published at all it won't be for many years, so I don't think copyright is an issue right now. However I have a number of people who have agreed to read the various drafts as I write them, so I would like to have illustrations if I can get them.

I have two hand built iconoscope tubes that are from the Sarnoff museum that were built around 1940. Are pictures of them what you are looking for?

1940 sounds a bit late for Iconoscopes with double-sided scanning targets, but by all means send them to me, thank you.