![Circa-1990-2016 group of six game-worn baseball helmets and jerseys from the Baltimore Orioles, with grading and authentication from JSA and Mears, estimated at $900-$1,000](https://www.liveauctioneers.com/news/wp-content/uploads/2023/05/Baltimore-Orioles-collection.jpg)
WILTON, Conn. – An autograph letter handwritten in German and signed by Ludwig van Beethoven, regarding his only opera, Fidelio; a group of six game-worn baseball helmets and jerseys from the Baltimore Orioles, dating to circa 1990-2016; and an autograph letter signed by John Adams in 1801 regarding the influence of Virginia Democrats will headline University Archives’ next online-only auction, scheduled for Wednesday, May 31. Absentee and Internet live bidding will be available through LiveAuctioneers.