This is a vintage 1980 Australian Advanced Teaser Daybill for the Empire Strikes Back. Apparently the studios at the time didn't want Yoda appearing on any posters, because they wanted viewers to have the surprise of seeing him in the cinema. As a result this is one of the earliest depictions of Yoda. There were no posters featuring Yoda in the US at that time. 

The poster is in great condition, but please use the images to guide you, and I'm happy to combine postage wherever possible.