Multiple YouTubers have posted the same "1957" mono recording of Atterberg's Cello Concerto in C-minor, Op.21 (1922). I have to say, this is best rendition of the cello conc. I have heard to date.
I have yet to locate the orig source (LP, tape, CD, etc). Nothing on discogs or Amazon.
I don't hear pops/clicks -- maybe taped from orig. radio broadcast???

Anyone reading this know of the source? Is it for sale?

Cello Concerto in C-minor, Op.21 (1922)

Cello: Edmund Kurtz

Orchestra: Radioorkestern

Conductor: Georg Ludwig Jochum

Recorded in 1957