I've seen a few different variations for this catalog number. This release is for the blue 'modern art' cover. Red with black, white, and gray 'Period 33 1/3 rpm microgroove' labels. My copy has a labeling error in that side A has the credits for the first and second movement of the unaccompanied sonata, and side B has second movement continued and the third movement for the unaccompanied sonata. No mention of the duo on the labels but the front and back cover are correct.
Barcode and Other Identifiers
- Matrix / Runout: SPL510A-N DBH T 31
- Matrix / Runout: SPL510B-N1 DBH T 33