Wilhelm Backhaus (1884-1969) is without doubt one of the most famous of recorded pianists, with a studio career stretching from acoustic recordings in the first decade of the twentieth century through to stereo recordings in the 1960s. The recordings below show him in core repertoire from 1913 to 1934.
Chopin – Etude in E major Op,10 No.7; Waltz in D flat major Op.64 No.1 (“Minute”)
Schubert – Moment Musical Op.94 No.3; Hark, hark the lark

Mediafire link for Chopin, Schubert, Beethoven and Brahms – Wilhelm Backhaus

(This is a zip file – left click the link, download the file, then unzip when downloaded)

His Master’s Voice D 170 (81rpm)
Matrices z7358f, z7360f (05553, 05550)
Recorded 20th May 1913, London
Brahms – Variations on a Theme by Paganini Op.35 Book 1 (Theme and Variations 1-8; Variations 9 -13)
His Master’s Voice D 1019
Matrices Cc 5437-II, 5438-III (05855, 05856)
Recorded 5th December 1924, London
Chopin – Fantaisie Impromptu in C sharp minor Op.66
Chopin – Prelude in C major Op.28 No.1; Etude in C major Op.10 No.1
His Master’s Voice DB 2059
Matrices 2B 5391-II, 5392-IV (32-4189, 32-4190)
Recorded 7th and 10th October 1933, London
Beethoven – Piano Sonata in C sharp minor Op.27 No.2 (“Moonlight”)

I. Adagio sostenuto (1 side)
II. Allegretto (½ side)
III. Presto agitato (1½ sides)

Bach arr Lucas – Pastorale from “Christmas Oratorio”
Wilhelm Backhaus, piano

His Master’s Voice DB 2405-6
Matrices 2EA 518-II, 519-III, 520-III, 516-II
Recorded 6th (sides 1 and 4) and 8th (sides 2 and 3) November 1934, Abbey Road Studio No.3, London