I’m not completely sure what this was called, but it looks like a stroller or walker of some type. The toddler is standing, but there appears to be a seat. The front wheels are directed sideways, but perhaps they rotate forward as well. The canvas to the back of the contraption looks a lot like a vacuum cleaner bag to me, haha, but I’m guessing it was a folded back sun shade/cover. This photo is great, you can even see the diaper pins on the cloth diaper – a thing of the past for most new mothers these days!