These are from my own household: 3 wooden Simplex puzzles that my children played with in the 1970s. Each one is round and measures 7.5" in diameter by 0.5" thick. The thickness lets you stand the pieces upright for further play. All have removable pieces and bright paint colors. First there is a farm scene with cows, chickens, a horse, a pig, and farmers; second is a circus scene with an elephant, bear, horse, seal, and people. These also stand upright and have small red pegs to lift them out.
The third is a round clock face with moveable hands in the middle. The scene shows a teacher mouse explaining analog clock time to her mouse pupils. Each numeral lifts out and the hands move and stay where they are placed, so it's still a good teaching tool.
These are all in very good used condition. The colors are bright and not chipped. The circus puzzle has a small dip where the cardboard backing sags a bit, but this does not jeopardize its use. These are ready to entertain and amuse a new generation.