 Sándor studied goldsmithing at the School of Applied Arts between 1921 and 1926, then he continued his studies at the College of Fine Arts between 1927 and 1933.His masters were István Csajka and Zsigmond Kisfaludi Strobl.In 1926 he was awarded with the Ferenczy István Prize, and in the same year he received the Metropolitan Prize and the Rothermere Prize.