Orbis Polish Travel Office Poland Hot Air BalloonOriginal vintage advertising poster for the Polish travel office Orbis featuring a fun design depicting people looking out from the basket of a hot air balloon lined as a globe of the world against a shaded blue background, the man using binoculars and the lady taking a photograph with the boy at the front looking over the edge, the logo and title text in the centre and the rest of the text below Poland Warszawa 16 Bracka Street Warsaw. Founded in