From the power of google:
In the early morning of 25th October 1952 pilot Capitan Tugomir Prebeg made a flight in very first Yugoslav jet plane Ikarus 451M. This flight together with Ikarus 451M opened the jet era in Yugoslav aviation. Ikarus 451M was an experimental, all metal construction aircraft designed by Major Dragoljub Beslin, built by Ikarus aircraft factory and powered by two Turbomeca Palace 056A turbojets.
Only one example was ever built and it was used for test flights until 1959.