I just got this keyboard module which apparently went with some sort of teleprinter. This seems to date to the 24th week of 1977 judging by the 4-digit date code.
Flickr Album
It appears mr_a500 has a similar keyboard module.
Like mr_a500's board it seems most switches are 1B3B's.
Something I haven't seen before and just like mr_a500's board are 4 switches which use a 9B3B LED switch and LED-style keycap.
1977 Micro Switch Teleprinter Keyboard Module
- JP!
- Location: United States
- Main keyboard: Currently a Model M
- Main mouse: Steel Series Sensei
- Favorite switch: Beam Spring
- DT Pro Member: 0194
- Contact: