The one sheet is part of the accesssories of the United Film Distribution Company advertising press sheet. Artwork by Lanny Powers.
69 x 104 cm
From my personal collection.
(Click on the pictures to review them in their native resolution.)
To quote this article
Danny Duchesneau@2022, "Dawn of the Dead Theatrical One Sheet Poster issued in the US by distributor United Film Distribution Company in 1979", Dawn of the Dead Collector's Blog, published on 25 February 2022.