The best way to learn what genuine antiques look like is to study them carefully at an antique shop, auction, or collector's home. Look carefully at the different styles and pieces, observing their construction, details and finishes. A number of features give good indications of the age of a piece.
Most antiques are not completely uniform in color. The top is often lighter than the rest of the piece due to fading due to sun exposure. On the contrary, the gaps and other hidden parts can be darker.
The top of an antique piece of furniture should show signs of normal wear and tear, such as watermarks, rings, stains, or cigarette burns. Rounded or smooth edges are another key indicator. You may also notice some gap between joined tables.
Feet don't have to be perfect. A piece that is several decades old usually shows some softness or staining from exposure to water or dents, dings, and chips, the result of being hit by brooms, sweepers, or vacuum cleaners.
The hardware and the wood around it should show more wear than other parts of the wood. Screws should be single slotted, not Phillips head. Metal hardware may show signs of being handmade.
Pull out the drawers and inspect the bottom for signs of wear on the runners. Pay close attention to the unstained areas of the wood, which should have turned slightly brown with age.
Most reproductions are not made with the intention of tricking someone into thinking they are antiques. Manufacturers can duplicate the look or feel of an antique, but with modern methods that are easy to spot.
If there is any doubt about the authenticity of a piece, be wary if the wood is flawless, the corners sharp and the edges creaky. Modern reproductions usually have an inexpensive plywood backing with staples or finish nails. Phillips head screws and hardware that appear lightweight or machine stamped are also indicators that the part is a reproduction.