According to legend on back this RPPC shows Artemis/ Diana, goddess of chastity and the hunt. Comes from a French pc series (ca. 1900) of gods and goddesses represented by child models.
Not sure, however, I would I have known which goddess this little girl was meant to portray without the explanatory title. She seems to lack any of the conventional emblems of Artemis--the crescent moon, the bow and arrow, dog and/or accompanying virginal maidens.