Potter & Potter Auctions will auction off dozens of old lithograph posters of magicians.
Many posters are more than 100 years old.
A suburban woman found them in her basement after her husband, who was a collector, had died.
A 1902 Houdini poster, valued at about $20,000, is the rarest of the lot.
11 a.m., Saturday, March 26
Potter & Potter Auctions
3729 N. Ravenswood Ave.