Apparently was part of the Polly Pocket Writing case playset, which we no longer have (or can even recall!). Described as "Baby, tuft of blonde hair, bright pink diaper, sitting with arms and legs out to side (1990)".
Vintage Bluebird 1990 Polly Pocket Pencil Case Playset Green Version 2 Doll Figs
Polly Pocket FRY41 Hidden Places Dance Par-taay Case Playset
VINTAGE POLLY POCKET BIG NIGHT OUT RING CASE PLAYSET ONLY - 1991 - BLUEBIRD TOYS
VINTAGE FASHION POLLY POCKET STORAGE CARRY CASE X 2
Polly Pocket Tiny Pocket Places Polly Farmer's Market Compact with Removable Lemonade Stand, Photo Customization, Reveals, Micro Polly Doll and Sticker Sheet
Polly Pocket 9.5cm Doll and Accessory: Skiing POLLY by Polly Pocket
