 Aba also worked on frescoes of the St. Stephen's Mausoleum in Székesfehérvár and on the Church in Városmajor, Budapest, in 1938.The jury's Grand Prize at the Paris World Exhibition in 1937 and the 1940 Venice Biennale were both awarded to him.He was a teacher at the College of Fine Arts from 1939 until his death.