North Fork Collection of Superb 20th Century Us Stamps Robertt a Siegel Auction Galleries Sale 903, October 2005 Softcover Auction Catalog: Inc. Robert A Siegel Auction Galleries: : Books
Finest mint 1918 Jenny Invert highlights Nov. 8 Siegel auction of Nathanael Greene collection of outstanding U.S. stamps
Siegel Auction Catalog Superb Used US Stamps Dr Edward Dauer Collection 2008
Us Stamps Auction
Robert A. Siegel Auction Galleries, INC.
Values of US Stamps Scott Catalogue #388 - 1910 2c Washington Coil
Robert A. Siegel Auction Galleries, INC.
Rare and Valuable US Stamps and Postal History
United States Stamps for sale
Stamp collecting: Rare Canadian stamp from 1851 up for auction in Ottawa