The Cherry G81-3091 - a mechanical keyboard from the 1980s...

No, it is not really clean - but it IS still working - not sure if today´s keyboards will still be intact after that many years of use...=-)

Here, the mechanism below one of the keys...

And here the mechanism disassembled...

Feel free to compare with the "buckling spring" keyswitch mechanism of the Unicomp Endura Pro.

greetings noq2