While the FCC has dropped the code requirements to earn licenses, There is still a family historical interest driving me to learn. You see my Grandfather was in the Signal Corps in WWI and this was his telegraph key:
We don't know much about it, though it's probably at least 100 years old. There is am 1899 date cast into the receiver(?) frame. If anyone knows more about it, please answer in the comments (Bobbi?, anyone) or via direct email sandcastlescrolls at msn dot com.