This is a 3-piece boys christening or baptism outfit, including a romper, embroidered vest, and cap with embroidered brim and satin lining. 

There are no tags inside to indicate maker, fabric content or size. But it is very similar in size to another outfit I have that is labelled 12 month. It measures about 15" from shoulder to crotch. The crotch and the back of the neck both fasten with snaps.

The vest has wonderful embroidery that continues fully on the back, and fastens with 3 buttons. The cap has the same embroidery on the brim and in a circle on the back of the head, and has a soft satiny lining.

I have many other vintage children's clothes listed and am always happy to combine shipping.