Paul McCartney Paintings Art exhibition invitation

An original Invitation to Paul McCartney's Paintings exhibition which was held at the Kunstforum Lyz in Siegen, Germany, from May 1st to July 25th, 1999 The exhibition was the first public display of his artwork and featured about 70 paintings. One of the most talked-about pieces in the exhibition was an abstract portrait of a young David Bowie titled "Bowie Spewing". The poster for the exhibition itself, which can be found for sale, features an image from McCartney's book, titled "Big Mountain Face" or "Bowie Spewing" The invitation measures 21 x 14.9 cm The condition is mint