Belfer Website With over 22,000 recordings, Belfer is the nation's largest collection of audio cylinder recordings outside the Library of Congress.		36. Belfer Audio Laboratory and Archive One of the finest facilities of its kind in the nation, this laboratory was the first building in the world designed specifically to restore and preserve audio materials. The archive, named after principal donors Diane and Arthur B. Belfer, has a major collection of early audio equipment and recordings.
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