Cavellini 1914-2014. Signed posters

A collection of three large signed posters and one signed card: (1) International Postage 33, undated (ca. 1975). Colour offset poster, 140 x 100 cm, with original stamp in blue, signed and dated 'GAC, 1981'. Folded in 8, remnants of transparent tape on top part, else very good. (2) Venezia-Palazzo Ducale, undated (ca. 1975). Offset poster, 100 x 70 cm, with original stamps in black, plus 3 stickers. Signed and dated in marker 'GAC, 1981'. Folded in 8, mild rubbing along folds, with tiny hole at the crossing of folds, generally in good condition. (3) International Postage 333, undated (ca.1975/80). Colour offset poster, 80 x 60 cm, with original stamp in blue, signed and dated in marker 'GAC, 1981'. Folded in 8, very good copy.

(4) Venezia-Palazzo Ducale, undated (ca. 1975). Colour offset card on thick stock, 37 x 19 cm, signed by the artist and dated 10 April 1979. With original rubber stamp and handwrittten text in red and black marker: 'I hereby authorize Joseph Vasta to act as Master of Ceremonies at a centennial celebration that he is to organize in my honor in the year 2014 at an American Museum', signed 'GAC'. Sticker on verso reads 'A work of art by Cavellini to be framed and hung on the wall'. Mild rubbing on top and bottom edges, top corners with slight dents, fine copy. (total 4)