Things You'll Need
Instructions
Handle the duck decoy for careful inspection. Vintage decoys will look and feel old. The paint and wood will have a consistent, overall wear pattern. The decoy may even have bullet holes. If the decoy looks new, it is unlikely to be an antique.
Inspect the eyes of the decoy. Vintage waterfowl decoys often have glass eyes.
Check the bottom of the decoy. Some carvers carved their initials and date the decoy was made into the bottom of the decoy. Factory-made decoys almost always have this information stamped onto a metal tag on the bottom of the decoy.
Study respectable books on the subject of duck decoys to learn to recognize an antique when you see one. In the "Wildfowl Carving Magazine spring 2010 article "The Real Deal, Stephen O'Brien of Copley Fine Art Auctions in Boston recommends three books in particular: "American Bird Decoys" by William J. Mackey Jr., "Wild Fowl Decoys" by Joel Barber and "The Art of the Decoy" by Adele Earnest.