The Connections Museum in Seattle has one of these in operation (as well as other generations of mechanical and electronic switching) which is amazing to see and hear in person.
I haven't seen anything from the Connections Museum to indicate they have any non-Bell CO stuff on display. Where are you seeing that they have an ITT/Pentacosta switch?
Here's the No. 5 Crossbar: https://www.youtube.com/watch?v=XKyXCZV_faY
The whole museum is absolutely worth repeated visits.
https://www.telcomhistory.org/connections-museum-seattle/
https://www.youtube.com/@ConnectionsMuseum