If I had to guess, I’d put these as one Futaba switch keyboard and one Alps-mount-switch keyboard, but I’m not really sure, the Sejin one might also be rubber domes, despite the “click sound” in the title:
http://www.ebay.com/itm/181390793768[Also, probably doesn’t count as a “great find”. I just don’t see too many old Korean keyboards on US Ebay, so thought it was slightly interesting.]
