This NWT vintage Gymboree shirt from the 2010 Girl's Best Friend collection is in infant and toddler girls' sizes.  The dark java brown knit top has slightly puffed long sleeves with a layered look and a keyhole back for easy dressing.  Appliqued and embroidered on the front with light blue ribbon are the words "little sister".
 
From the 2010 Girl's Best Friend collection.
10 GY WINTER CAP
 
140072185-GYJ024