These three little fellows are technically triples because they have one or two things in common. First, their eyes are all done in the same technique. Second, they all have a hook and bar neck assembly. And all are 16 inches tall. However, their skin tone and surface finish are slightly different and one has more hair rooting. They are probably more like a pair of twins and a later cousin. According to Dorisanne's book, the hook and bar assembly ran from 1965 to 1974. Their eyes look more 70s than 60s. No matter their birth date, they are a playful bunch, and I suspect they get along much better than real triplets.
