Well a search for Н. Мельник and А. Светикас found several drawings of it including the one used for the challenge but I can't see what its called, other that it appears to be a 1960 design by Н. Мельник and А. Светикас.
Edit to say, looks like RR has found it...well done mate.
Last edited by skytrain10; 7th Apr 2011 at 16:43.