Very good to excellent vintage condition.   The only issue I have found is a small cut/hole in the very end of the train (I would be happy to sew it up for you or you could just shorten the train by a few inches.) There are two hooks/eyes in the back where there might have been a large bow that you could attach.  However, that would be easy to replace if you would like a bow, .

Size is a vintage 9, fits like a fitted small.  
Armpit to armpit:  17. 5 inches (no stretch)
Waist--flat across:  13 inches

The veil features a lace cap style and has tiny seed pearls sewn on the long layer.  The gown has layers and an attached crinoline and pearls and sequins.  Truly a gorgeous cupcake of a wedding gown.  Just a splendid piece of history.  

This was found in a vintage box, and I would advise professional cleaning.