Another example is 1930s French Art Deco pieces. Click to enlarge. Jugtown pottery was made in North Carolina. Authenticity determines value Authenticity is a more important aspect in deciding if something is an antique because it, not age, determines the actual value of a piece. Any object that is in original condition is far more valuable than a piece that has been altered.
Any alterations diminish the value of a piece.
Alterations include refinishing, relining a painting, repairing porcelain, resilvering, regilding or replacing feet, top or brasses. That is not to say you should not consider purchasing an item with alterations. Simply be aware of the alterations. You should also know that the piece will be compromised in value due to alterations, and you should not pay the same price for an altered piece that you would pay for an unaltered piece. Click to enlarge.