A JERUSALEM ANTIQUITIES DEALER, writing for the Bible and Interpretation website, discusses forgeries and how to detect them:

One Man’s Forgery Is Another Man’s Antiquity

If a group of suspect objects were sold to one collector who was buying primarily from one man, we have more information. Yet, some of the most successful peddlers of fakes have been first-rank dealers who exploited their reputation of handling the finest merchandise.

By L. Alexander Wolfe
November 2005