Kinesis Model 100 (1992)
Kinesis model 100, 1992
History of Kinesis keyboards.
First model, Kinesis model 100, came out in 1992.
Kinesis Advantage
Second model is probably the Kinesis Advantage. Not sure what year. But at least by 1998.
Used at google garage back in 1998. I count 6 of them.
Kinesis Advantage2, Year 2016
Kinesis Advantage2, Year 2023
Reference
2022-05-11 great article written by kinesis, covering some of their history. https://kinesis-ergo.com/zmk-and-kinesis/