Konstantin Ivanov’s 1963 EMI/Melodiya recording of Glazunov’s Symphony No.5 is well-regarded, but his earlier account for Supraphon with the Czech PO is little known. This issue appears in the WERM 1951-2 supplement as a reissue, so the LP would appear to be from around 1950, and the timing of one or two conspicuous edits suggest a 78rpm source.
Mediafire link for Ivanov’s Glazunov 5
(These are zip files – left click the link, download the files, then unzip when downloaded)
Glazunov – Symphony No.5 in Bb major Op.55
Supraphon D LPM-18 (matrices MM43/4)
Recorded c1950
Czech Philharmonic Orchestra, Konstantin Ivanov
I. Moderato – Maestoso
II. Scherzo
III. Andante
IV. Allegro – Maestoso