This collection of Stravinsky's monaural recordings for Columbia Records is out of print and very expensive, so it might help for the prospective buyer to know exactly what lies in store.
CD 1 and half of CD 2 derive from sessions with the Cleveland Orch. in Dec. 1955. The works are The Fairy's Kiss, Sym. in C, and Pulcinella (complete with vocal soloists, in this case local Clevelandrs, I believe). CD 2 is rounded out with the L'Histoire du Soldat Suite and the Octet, derived from sessions in Jan. 1954 in New York. The small ensemble consists of outstanding freelances and members of the NY Phil. They are recorded cearly and very close up.
The Cleveland recordings re in spacious, detailed monaural sound that has remastered very well; these could be mistaken for modern recordings. Stravinsky made very good stereo remakes of the Sym. in C and Pulcinella, but the earlier versions are tidier and better played. The composer was somewhat less fierce in the Sym. in C in 1955. A deciding factor in Pulcinella might be that the vocal soloists in the later, stereo version are so much better -- the Cleveland singers really struggle at times.
His remakes of The Fairy's Kiss and L'Histoire weren't nearly as good as these early accounts, however, in terms of rhythmic vigor and ensemble.
Which leaves the Octet. I haven't listened to the stereo remake recently - I did audition all the others -- but this early one is exceptionally good, and with a small chamber group it hardly matters that it's in mono.
In the final analysis, everything on these two CDs shows Stravinsky the conductor at his best. I assume that the sellers at Amazon are offering the deluxe packaaging of the original releases on Masterworks Heritage -- at these prices, they should be.