I recently added the below 2001 The Simpsons Mania! autograph to my Simpsons' Collection. The "role player" voice actors and actresses from the two sets Inkworks put out command bigger bucks than one might think and Russi Taylor has alluded me for some time. A seller who had three of these eventually dropped their price by a fairly substantial amount and I decided to pull the trigger.
Russi is most well-known for voicing Martin Prince, Sherri and Terri, and Üter Zörker (the pleasantly plump German exchange student) since the show's inception.