Set of Vintage 1970s soup bowls

A set of four 1970s made in Japan vintage soup mugs with recipes printed on each (Mushroom, Split Pea, French Onion, Clam Chowder). They are 4 inches in diameter and 3 inches deep. They have some crazing, spots and the paint has worn off a bit on two of the soup mugs, therefore I would advise against washing them in the dishwasher.