The baby's not mine. I babysat for some friends in exchange for use of their washer and dryer. The bag at the left was a splurge at a local boutique: a raw leather backpack I carried everywhere.
I don't remember what happened to the smock, for which I now give myself a big dope slap every time I think of it. It disappeared in one of my subsequent (frequent) moves.
This is the closest thing I have been able to find, from an artist's supply in Great Britain:
Not the same, though. Mine had no buttons, it just slipped over the head and had a bateau-type neckline with small pleats.