"Day and Night" Print by M. C. Escher - Dutch graphic artist - This piece is known for its use of tessellation, where interlocking shapes of white geese flying on way and black geese flying the opposite direction creates a seamless pattern - W 34 1/2 inches x H 23 1/2 inches - $250 - See pic 1
GRAFIEK EN TEKENINGEN Book - By M. C. Escher - Book is in excellent condition - 1960 Edition - $35 - See pic 2 -3