The concert of 27 January 1952 was an "all Brahms" programme, with the Double Concerto featuring two soloists of the Vienna Philharmonic.
We already have the sound — the concert was recorded in full; we have a letter from Furtwängler —see the circular—; now we present the facsimile of the programme, and three press clippings for good measure.
Only the SWF makes such documents available!