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Historical Collectible Consignment Directors

(meet our experts in all of our categories)

Sandra Palomino
Director, Historical Manuscripts
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1-800-872-6467 x1107
Languages Spoken: English, Spanish
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Sandra Palomino has more than a decade of experience working with historical manuscripts, autographs, and rare books both via private treaty sales and auction. She has worked closely with private collectors as well as institutions here and abroad, most extensively with Fundación Castañe in Madrid, Spain. Her course of study at Yale focused on 18th and 19th Century American History. Her professional experience also includes direct marketing and public relations work with such noted companies as Rapp Collins and Donnelley Marketing.

Tom Slater
Director of Americana Auctions
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1-800-872-6467 x1441
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Tom Slater began his career in early 1960s Pittsburgh, where he owned and operated half-interest in a retail coin store. In the 1970s he published nationally distributed auction catalogs, specializing in political campaign collectibles. A cum laude graduate with a BA degree from Yale University, Tom also attended Columbia University law school. He became a full-time collectibles dealer in 1976, and operated art galleries in Los Angeles and Indianapolis through most of the 1980s. He ran The Political Gallery throughout the 1990s, which evolved into Slater's Americana. Tom joined Heritage in 2004.

James Gannon
Director of Rare Books
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1-800-872-6467 x1609
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James Gannon received his degree from the University of California at San Diego, and subsequently worked in the entertainment industry for many years before finding his life's work in the world of books. The majority of Gannon's 16 years experience in the rare book trade was gained through his association with Heritage Book Shop in Los Angeles. He has a special interest in early printed books, travels and voyages, color-plate books and fine printing, but he has handled and cataloged volumes of all types.

John Hickey
Consignment Director
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1-800-872-6467 x1264
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Blending extensive experience and more than 20 years of collecting (most notably in the autograph field), John Hickey is contributing to Heritage's expansion into new areas and assisting in the consignments of sports, music and entertainment, and historical documents. He came to Heritage as an operations manager in 2004.

Delia E. Sullivan
Senior Specialist, Consignment Director
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1-800-872-6467 x1343
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With a Master's Degree in Cultural Anthropology from the New School for Social Research in New York City, Delia E. Sullivan studied Primitive Art with Ted Carpenter and Shamanism with Michael Harner. She worked for 14 years at Christie's in New York City, seven of which were spent as head of the American Indian Art Department. From 2000 through 2007, Delia managed two auctions a year in that capacity, during which she significantly raised the profitability and reputation of her department.

Dennis Lowe
Director, Civil War
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1-800-872-6467 x1182
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Dennis Lowe has been a nationally recognized authority on eighteenth and nineteenth American arms and militaria for more than three decades. During that period, he has had served as an adviser and consultant to numerous important institutions (including the National Park Service and the Smithsonian Institution) and significant private collections throughout the United States. He joined Heritage as the Director of Arms and Militaria in 2008

Marsha Dixey
Consignment Director
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1-800-872-6467 x1455
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Marsha Dixey has worked in the Americana collectibles business for almost 30 years and is a widely acknowledged expert generalist, handling most anything falling under the "Americana" genre. Her interest in American social history has made her an expert in Woman's Suffrage items and African-Americana. She has dealt in premium antique advertising for years, was elected to serve two years on the Board of Directors for the Antiques Advertising Association of America.

David Herskowitz
Director - Natural History
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1-800-872-6467 x1610
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David Herskowitz began his career as a fine gem and mineral dealer in 1988. When he discovered a beautifully preserved insect in one of his stock of amber nuggets, he became entranced and switched his focus solely to Natural History. For many years he owned and directed a specialty business importing amber specimens before moving on to conduct Natural History auctions in New York City. An acknowledged leader in the field of fine Natural History specimens, from gems and minerals to bones and fossils, he has appeared on CNN, NBC, and ABC, and has been featured in numerous articles appearing in The Washington Post, The New York Times, The Los Angeles Times, and, more recently, in Natural History Magazine.

Peter Wiggins
Assistant Director - Natural History
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1-800-872-6467 x1639
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Peter Wiggins is the direct assistant to David Herskowitz, Director of Natural History, where he oversees the day-to-day operations of this rapidly growing auction division. He is directly involved with every aspect of the department, including catalog production, auction operations, consignment coordination, and client service. Along with Mr. Herskowitz, Peter continues to build the department and make Heritage Auction Galleries the leader in Natural History Auctions.

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