PuzzelMan (819) - M. C. Escher: "Waterfall" - 1000 pieces puzzle
Hand with Reflecting Sphere” Puzzle 1000 pieces – M.C. Escher – The Official Website
My Selegiochi Escher collection 💙.As far as I can see there where 19 of these released.Mostly 1000 piece but a couple of 500s and one 3000. Still searching for the last five.
PuzzelMan (861) - M. C. Escher: "Three Worlds" - 1000 pieces puzzle