"Zombi: El regreso de los muertos vivientes" set of 12 lobby cards or more precisely juego de fotocromos, as they are referred to by distributors in Spain. Each card has a reference number on the front.
33.8 x 23.5 cm
From my personal collection.
(Click on the pictures to review them in their native resolution.)
To quote this article
Danny Duchesneau@2021, "Dawn of the Dead Lobby Cards issued in Spain by distributor Izaro Films in 1978", Dawn of the Dead Collector's Blog, published on 30 December 2021.