Vintage Keyboard I found in my lab that I'm trying to get cleaned up and see if it is still functional. Network Computing Devices model N-108lk. It uses Hi-Tek two eye "space invader" linear switches. I believe it is from sometime in the late 80s, but I'm not sure if there is anywhere I can check the serial number to find out for sure. Overall the switches still feel really nice.
edit: This uses a ps2 port so I don't need a converter.