Panama City, Jun 5 (EFE).- Panama on Monday opened an exhibition of some 40 lithographs by Pablo Picasso as part of the commemoration of the 50th anniversary of the Spanish artist’s death. The exhibition “Aún sorprendo” (I still surprise), with an original collection by Picasso (Málaga, 1881 – Mougins, France, 1973) on loan from the …