The Steward Observatory owns multiple telescopes in varying locations (from Kitt Peak, to Mount Lemmon, to Mount Hopkinds, etc.). This is the sign out front of the Bok Telescope (installed in 1968). Aside from the Bok, Steward owns 4 other telescopes on Kitt Peak.
On a previous observing run at Kitt Peak, I was afforded the chance to give an impromptu tour of the 2.3m. It was a result of it being a cloudy night (so I couldn’t observe), and there being a night time outreach program on the mountain. More is described here.