So curiosity got the best of me yesterday and I did some googling to see what other military teletype installations may still be around. Really the Navy stuff is probably a bulk of it, since they used so much and in designated "places" (ships) that may still be preserved. I didn't expect to find much on Army or Airforce comms type places as they'd all be remodeled or redone when obsolete, however I did find this page that seems to have a couple surviving portable rigs: https://rattrig.com

Then I also came across this vid showing some 28s banging away at the Airforce:

And of course there's other small museums and such around like Duncan's that has a bunch of this stuff spanning all depts as well.

Does anyone else know of any "surviving" installations - meaning - places where TTYs were used originally, and are still there? I guess KPH probably counts (https://www.radiomarine.org/radio-archaeology/kph-kleinschmidt)

Jeff KC3GJX