There are some nice pix of a 100F in this eBay listing. (Darn eBay won't let me download images anymore...guess I'll find 'em in "Temporary Internet Files?").
Anyway, those are good pix of a great, if rare, transmitter from the 50's. If I saw one like that at a hamfest and I could give it a good home, I'd snatch it up for a price that this one is going to fetch. Make a nice addition to a vintage collection.