Thank you Greta, Hrvatski and nidostar! The KPM 1290 and 1342 are total classics. However ...
... their sound isn't very good here, and in some places rather bad. Apparently, the records were in a less than optimal condition. The fairly aggressive de-clicking and de-noising that was applied subsequently has deteriorated the sound further, as it must.
If you like this music, try to find the tracks in 16-bit, 48-kHz format. These probably are the digital re-issues. The quality difference is profound.