205 ILCS 511/15-45

(a) No pawnbroker shall receive or purchase any article if the manufacturer's make, model, or serial number, personal identification number, or identifying marks engraved or etched upon an item of personal property has been removed, altered, or obliterated. (b) The prohibition in subsection (a) does not apply if the article's manufacturer's make, model, or serial number, personal identification number, or identifying marks have been worn in the ordinary course of use. However, no article described in this subsection (b) shall be sold or transferred to another pawnshop location of such pawnbroker for a period of 15 days after the delivery of the copy and statement required by subsection (b) of Section 10-25 required to be delivered to the officer or officers named therein.