Whether you've just caught a home run on the upper deck of Great American Ball Park, or have happened upon a mysteriously signed dusty ball in dad's attic, you've got to authenticate the signature before you sell it if you want to realize the most profit from the sale. Learn the ropes with this introductory guide to signed baseball authenticity.
Craquelure is the term we use to describe the visible network of cracks on the surface of a painting or object. This cracking is caused by the shrinking of paint or canvas. Appraisers of fine art recognize the pattern of craquelure on the surface of a painting or object is one of many factors analyzed in the determination of age and authenticity.