Warhol and Broodthaers. Seriaal announcement cards

(1) Andy Warhol, Electric Chairs. Seriaal Gallery Amsterdam and Des Bouvrie Bussum, 1972. Silver printed double sided card, 20 x 14 cm.

(2) Marcel Broodthaers, Citron - citroen/ Réclame pour la mer du nord. Announcement for the launch of a multiple and exhibition at Seriaal Gallery Amsterdam, 1974. Double sided card, 21 x 13.5 cm. Both rare and in excellent condition. (total 2)