There's a related, typeset version from the Annals of Mathematics five months later, on page 9 of: https://webspace.princeton.edu/users/mudd/Digitization/AC105

There's a related, typeset version from the Annals of Mathematics five months later, on page 9 of: https://webspace.princeton.edu/users/mudd/Digitization/AC105/AC105_Nash_John_Forbes_1950.pdf https://webspace.princeton.edu/users/mudd/Digitization/AC105... While we're on the subject of brevity, page 23 has the shortest recommendation letter I've ever seen.