"The likelihood is it could be forged. And a number of scholars would probably lean in that direction," he said.
As to the James ossuary, Rosenbaum explains that it would be easy for an antiquities collector to come into possession of a relic and simply add a controversial inscription.
"All they had to do was put words on it and it becomes historically significant. With the James ossuary, the box is authentic, but the inscription added on is not."
Forgers would have a huge financial motive to fake ancient artifacts, especially ones of these significance. Rosenbaum estimates the Yoash tablet could fetch millions.
"If you can produce something that scholars will debate, then you've got the potential if you are the owner for millions," he told FoxNews.com.
He suggests that the James ossuary and the Yoash tablet be held for safe keeping while the experts determine their authenticity.
"Hopefully in a few years we will know the truth."
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