Britten conducts Britten - Symphony for Cello and Orchestra, OP. 68 & Haydn - Concerto in C for Cello and Orchestra. The English Chamber Orchestra w/Mstislav Rostropovich, cello. London 1964 Mono
I have this LP in stereo, but have never played this mono version yet.
I can already tell, this is another well recorded/engineered mono release. Amazing really.