ODE TO PICASSO WALL ART

I purchased these two pieces of wall art 10 years ago they were part of a collection produced by several young promising artists ,the theme being Ode to Picasso at the time these two were the only pieces that I could afford among all the sculptures and pottery and paintings, these two characters are from Picasso's black and white abstract series ,the horse head is from Guernica ,I'm not sure about the man's head ,they are both made of a hard type of plaster and marked M S on the back,cool pieces!