Three very wholesome-looking babies and their knitted hats, from the early 1960s. Probably the same baby, which has clearly been bribed with a Jacob's Cream Cracker to model all three hats in such a winsome manner.
Or maybe they are identical triplets with three Jacob's Cream Crackers. We may never know.
Baby bonnet, helmet and beret are knitted in double knitting and poodle wools (that means bobbly wool, rather than wool harvested from a poodle).