Illinois Statutes Chapter 815. Business Transactions § 357/12. Exemptions

(1) When the animal part or product is part of a bona fide antique, if:

(2) When the animal part or product is part of a musical instrument, including, but not limited to, a string or wind instrument or piano, and that is less than 20% by volume of the instrument, and the owner or seller provides historical documentation demonstrating provenance and showing the item was manufactured no later than 1975.