Pink & Silver Flapper style leotard costume by Starz on Stage
Marked girl's size 14, but I would say it's more like a size 12.
Leotard is a dark pink and features a silver collar with small bow tie, some sequins and tassels (note that a couple of tassels look to be missing at the back - see photos), clasp closure at the neck.
Was worn for a concert dance.