America’s most valuable postage stamp sold for nearly $4.4 million on Friday. The 1868 one-cent "Z" Grill was sold as part of the collection owned by "Bond King" Bill Gross, who co-founded asset ...
Robert A. Siegel Auction Galleries in New York recently announced that it will be auctioning off a Benjamin Franklin Z Grill during a large stamp auction on June 14. Issued by the U.S. Postal ...