When we can travel again and they re-open, this museum is tops on my list. https://telephone-museum.org/
Especially love the story they mention about the 2600Hz whistle! https://telephone-museum.org/telephone-collections/capn-crunch-bosun-whistle/
We're introducing an all new Gallery of Images and hope you all will share a view from your lens. We've started some albums HERE.
Please contribute to them, so far there are:
TelCo Beauty contest
And let us know your ideas for additional albums!