Vintage 50s Bianchi Wedding Dress Scoop Neck Beads Floral Train 1950s + Hat

Vintage 1950s dress from Bianchi. It needs to be dry cleaned. It does have a smell of old dry cleaning to it and also there are a few spots in the front of the dress. Please see photos. There are two buttons at the back of the waist and I don't know what's supposed to button on here. It is possible something is missing. Either that or the train buttons up somehow, but I can't find anything to button it with inside the dress. Bust 33 waist is 25. Length 57 inches in front. It does have a train. It includes the original hat. Please note that the yellow tones on the head are from the lighting and not on the hat. It does match the dress.