One side-effect of finding this machine is that I'm incapable of remembering the model name properly. It is truly "Tropical" as I eventually stated. You can see it among the other Olivetti machines on Will Davis' site. Imagine the name badge says "Hermes" and you'll have it.
Also, this typecast topic got away from one of my original points, which was the documentary being filmed right now by the crew from LA. After some back-and-forth trying to get me to find a location, we met last week in a local used-book store, and I managed to sweat and mumble my way through a series of innocuous but otherwise mind-blanking questions ("What's your name, and what do you do" and "What's your first memory of a typewriter.") If I make it into the final product at all, it will be a testament to their editing skills. I know that folks at the L.A. and Phoenix type-ins met Gary and Chris and praised them for their professionalism and unobtrusiveness. They were particularly patient with me the entire time, despite me trying (and failing) to not stare at the one customer who hung out and watched the first half hour of the interview.
True to form, I managed to not even think to grab a crappy cell-phone photo of the experience. If you happen to get contacted by these guys, please do your best to be courteous and polite to them, so they can get some usable quotes out of the experience. And pick someplace air-conditioned, so you don't look like Nixon sweating his way through a debate.
Typed on "Lennon", a 1972 Hermes 3000 with only a slightly confused heritage