More from this treasure trove:
Disc 6 - Piano Trios No. 1, Op. 8 and No. 2, Op. 87 - with Henryk Szeryng and Pierre Fournier
Some interesting background info on Szyerng and Rubinstein from wikipedia:
When World War II broke out, the Premier of the Polish government in exile asked Henryk Szeryng, who was fluent in seven languages, to serve as his liaison officer and interpreter. Szeryng took these positions and discontinued his studies, although he continued to perform on the violin, giving over 300 concerts for Allied troops all over the world. When he accompanied Sikorski on a mission to Mexico in 1941 seeking a home for 4,000 Polish refugees, the positive reception moved Szeryng so deeply that he decided to become a Mexican naturalized citizen, and did so in 1946. In 1945 he accepted the request that he head the string department of National University of Mexico.
In 1954, the pianist Arthur Rubinstein -- also a Jewish refugee from Poland -- gave a concert in Mexico City; Szeryng visited him backstage afterwards, and accepted Rubinstein's invitation to come to his hotel to play music. Szeryng's playing of solo violin music of J.S. Bach that night, said Rubinstein, "reduced me to tears. ...Real music lovers want emotion--great moments--which Szeryng's playing gives them." Rubinstein encouraged Szeryng to begin concertizing again, and introduced him to impresario Sol Hurok to help achieve this end. Rubinstein and Szeryng made music together regularly for the rest of their careers, and recorded much of the classic chamber music literature either as a duo or in a trio with cellist Pierre Fournier.