Royal Concertgebouw Orchestra
These live recordings date from 1968 (Shostakovich) and 1980 (Nielsen), and are part of a series releases by Philips referred to as "The Kondrashin Recordings".
These are terrific performances (The Nielsen is particularly outstanding.) I have most of these "Kondrashin Recordings" on vinyl from the mid '80's, but I don't have the equipment to transfer them. I was very happy to come across this one to post. If anyone has any of the others, I would love to see them posted here on Demonoid.