Are you referring to the Oistrakh recording? If so it might interest you to know that the actual violin he used might have been a Strad, but it wasn't a great one. Yes, it was obviously better than many out there but even Itzhak Perlman agreed that it really was not a great instrument. And as my violin teacher used to say to me, Oistrakh could make any violin sound good. And this is true. What you are hearing there is mainly the player, not the instrument. Even ignoring his superlative left hand technique, his right arm (bow arm) technique was so incredibly evolved that he could pull a great sound out of anything. I'd go so far as to say I know of no other violinist who had a right arm technique even close to Oistrakh, all the other greats included.
As for the recording, yes it is quite a good Decca but the best issue of it in my opinion was the relatively recent ORG 45 RPM one - not the one in the photo. Obviously the ORG version is the London label one with the completely different cover for the US market.