CNBC "Treasure Detectives" expert Curtis Dowling says spotting fake porcelain is pretty simple as long as you know what to look for—printing, weight and shape.
Rare books are easily faked, so how does a collector avoid becoming a victim? CNBC Treasure Detective Curtis Dowling says it's all a matter of experience.
Forged versions of famous paintings can make it past the experts. Curtis Dowling shows how to avoid getting fooled.
A celebrity or historic event associated with an ordinary item can add incredible value to it. But how do you know it's true?