The postcard shows an Austrian Airlines AG McDonnell Douglas DC-9. The McDonnell Douglas DC-9 (initially known as the Douglas DC-9) is a twin-engine, single-aisle jet airliner. It was first manufactured in 1965 with its first flight later that year. The DC-9 was designed for frequent, short flights. The final DC-9 was delivered in October 1982.
Austrian Airlines AG is the flag carrier airline of Austria, headquartered in Vienna. The typical Austrian Airlines arrow ("Austrian Chevron") had three versions. 1960 still looking like the body plan of a paper airplane, it got its now known shape in 1972.
McDonnell Douglas DC-9 Wikipedia Entry
Austrian Airlines AG Wikipedia Entry