I was remembering, oh bout '79...
Cc, I misread your post, Rich, sorry.

Yugoslavian Ikarus aircraft, I've found it labeled both as IK-1 and IK-2, can't say which it is exactly. My guess is this is the IK-1, prototype for the IK-2.
EDIT: ok, I'm pretty sure, it's the Ikarus IK-1