Witold Malcuzynski plays Chopin Waltz op. 64 no. 2 in Wawel - video 1959

Witold Malcuzynski playing Chopin’s Waltz, op. 64 no. 2, in Wawel, Poland, 1959. Perhaps someone can explain what he’s being awarded with? Thanks to the Warsaw Documentary Film Studio (WFDiF) for making this available.