I have collected antique doll clothing at local estate auctions for years, and now I'm starting to list them.  This is an antique or vintage dress for a doll.  It is hard for me to identify the size and type of doll that this would fit, so I've included measurements.  This is made of lovely slightly sheer cotton fabric with a white-on-white print for a subtle delicate look.  The dress has lace ruffles at the neckline and edges of the puffed sleeves.  There is also a V in lace on the bodice front.  Below the waist the skirt is gathered and full.  In back there is a long placket opening that closes with snaps at the neckline and waist.   

measurements, taken with the garments lying flat:
4.5" across front from shoulder to shoulder
6" across front at underarms
5.5" across front at waist
3" sleeve length
9.5" total length
 
This is in very good vintage condition.  I have carefully laundered and pressed them. The fabric is sound and not brittle.  It is in very good shape with no holes or wear except for one dark spot on the back of one sleeve, as shown.  It has a great vintage look.  I am experienced with antique clothing but am not a doll specialist, so please write in if you need more information.