Vintage Wind-Up 1977 1981 Bandai Green & Yellow Turtle Toys Lot

Lot contains 4 vintage toys, 3 turtles and a duck. The turtles wind up tested and working. The duck I believe is a pull string and missing the string no date or manufacturer markings. One turtle is dated 1981 Bandai, two dated 1977 singapore and third no date just K & K from Hong Kong.