Japanese CD twofer (UCCD-9687/8) of Grumiaux and Haskil playing Mozart violin sonatas K.378, K.304, K.376, K.301, K.454 and K.526
I can't find an image. It seems to be a combination of 2 previously released single discs. I bought this because (at the time) it was the easiest way to get the K.454 and K.526.
I already had (still do) this recording of the other 4: