vintage or antique bedjacket.  Pink satin like material with lace trim on all edges.  The material is worn and has some places worn all the way through.  There is some material in the seams close to the joint of sleeve and chest that appears to have been ties/ribbons.  I cannot say for sure this is what it looks like.  It is on one of the pictures.(whittish material caught in seam on front and back on both sides)  It reminds me of something Barbara Stanwich would wear in an old black and white movie over an evening dress instead of a gown..