This poster is not a reproduction or offset lithograph.  It is an original first edition, true lithograph posters, and a very collectible work of art.  Printed in 2005 by Arte in Paris for an exhibition of Ellsworth Kelly at Fondation Maeght after his 1963 painting "Red, Yellow, Blue".  Poster size: 26 1/2 x 19 1/2 inches. 

Mint condition new old stock with no color fading, wear, or paper toning.  The photo is highly detailed and an accurate representation of condition.  Shipped rolled in a mailing tube.