Oh, yes, the silver are definitely 60s! And very nice 60s at that.
Character shoes, or chorus shoes, are used primarily on the stage, and are traditional ballroom dance shoes. They're practical because they have a clean, not-attention-grabbing look, ankle straps for stability, and leather or similar soles to allow dancing. They have variations (like T-straps, or swivel straps like the picture), but the overall shape of the toe, vamp, and heel has been the same for decades. It's really obvious with your black ones, since they work so well for the 1930s. The appearance of the sole, the elastic on the strap (very common to make sure they fit), and the wear (not much on the sole, more turning on the right foot, and more dings than I'd expect from light street wear), all make me think these are character shoes.
I think that character shoes began way back in the 1920s, or whenever ankle straps came into fasion. I don't think there was a lot of specialized footwear then, certainly not like now, so chorus girls danced in regular shoes. And because they looked good and they worked, they stuck around. In the years since then, what were at one time regular shoes became specific dance shoes. It's the same for ballet shoes. The extremely square toes and ribbon ties are typical of 1830s ladies' footwear. In the 1830s, ballerinas were dancing in regularly-styled slippers. Toe shoes began to evolve then but kept both the square toes and ribbons of the 1830s. (It's actually possible that it worked the other way: Ballerinas were just beginning to dance on toe, and the square shape and ribbons are necessary for that technique. Ballet was extremely popular, so it might just be that those styles of slippers became so popular because of it. Nonetheless, slippers had been the dominant footwear for several decades by then.)