Nice. Sansui did a number of these promo LP's back in the day, most I've seen were 4 channel to demo the QS system. First I've seen this particular one. i see it has the short-lived oddball logo on it, as well as the clsssic logo on the rear of the jacket in an somewhat unusual form.
This likely puts it's date of manufacture in 1969 which was when Sansui briefly used this new logo with the sans-serif mixed case lettering, before returning to the classic script logotype again by sometime in 1970. I wish I knew what prompted the change, and the quick reversal of course as well, but we'll probably never have an answer.
Please do a follow up post on the quality of tbe music on this album if you get a chance. I imagine the selections are a bit corny owing to the highly period specific stylized Japanese jazz of the late 60's, which is sort of a unique musical form in it's own right.