*PRE-ORDER* The William H. Gross Collection of Complete United States Stamps Hard-Bound Catalogue

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An extraordinary philatelic resource with in-depth research on every stamp in this historic collection. This beautiful 10 x 12" hard-bound book with dust jacket completes the set of William H. Gross catalogues and is a lasting souvenir from one of the most important philatelic auctions of all time.

On June 14 and 15, 2024, Siegel Auction Galleries of New York City will offer the William H. Gross Collection of United States Stamps, the last in a series of auctions of what many consider to be the most complete and significant collection of American postage stamps ever assembled.

Built over the course of decades by the “Bond King” William “Bill” H. Gross, who co-founded PIMCO in 1971, this collection promises to set a new high-water mark for stamps collecting when it crosses the auction block. Siegel’s experts anticipate the entire collection will realize $15 to $20 million, with several individual stamps breaking the $1 million mark and the collection’s rarest stamp—the 1868 One-cent “Z” Grill—on track to become the most valuable American postage stamp with an estimate of $4 to $5 million.