Research ToolsBack to Top
Power Search
The most powerful search engine in philately. Search all of our auctions from 1993 to date, plus our Rarities sales since their inception in 1964, as well as some important older name sales.
PSE Population Report and SMQ
Automatically updated weekly, this allows you to check the current population report and SMQ price of any graded stamp. Follow the links to see a graph of pricing history and realizations from past Siegel sales.
Census Data
Comprehensive census information on some of the rarest United States stamps. Andrew Titley is also compiling data on some of the rarest worldwide stamps.
Vignettes
Commentaries on Items Offered by Siegel
Past Sales
Link to our archive of past auctions.
The Siegel Encyclopedia
Informative articles giving the historical background and context for the use of different stamps, designs and denominations.
Exhibits and Mounted Collections
Exhibits and mounted collections are an excellent way of conveying original research, and of showing different ways of mounting one's collection.
The Arthur White Postal History Archive
This remarkable collection of PDF files contains thousands of covers to destinations around the world. The markings are carefully illustrated and described, and the rates and routes are clearly explained. This is an excellent resource for learning how to decipher postal history.
Philatelic Foundation Online Search
Search their online database of past certificates
Today in History
Research whether any important historical events occurred on a certain day
Perpetual Calendar
Useful for dating postal history items
Currency Converter
Convert between any currencies at today's exchange rate. Also contains some historical exchange rate information
The Curtis Collection
The Curtis Collection census, started by Dan Curtis in the 1990's, was expanded and maintained with the capable assistance of Bill Buker. Siegel Auction Galleries has assumed responsibility for hosting and maintaining this indispensable resource for future collectors.
Hawaiianstamps.com
Comprehensive website devoted to Hawaiian philately.
Authentication CommitteesBack to Top
The Philatelic Foundation
Non-profit, specializes in United States stamps and covers and grading. Also has a feature to search past certificates. An excellent source for research
Professional Stamp Experts
Specializes in United States stamps, leading firm for grading
Civil War Philatelic Society
Expertizing arm of the Civil War Philatelic Society
American Philatelic Society
Expertizing arm of the American Philatelic Society
Vincent Graves Greene Foundation
Canada's premier BNA expertizing service
Worldwide Experts
Website with the most comprehensive list of worldwide philatelic experts we have found
SocietiesBack to Top
Western Cover Society
The Western Cover Society studies the Postal History of the old west and publishes information in a quarterly journal called Western Express about western express covers, territorials, town cancellations, or anything pertaining to the mails of the old west
American Philatelic Society
The largest collector's organization in the United States. Their site offers links to hundreds of affiliated specialized collecting organizations, and has schedules for upcoming shows.
American Stamp Dealer's Association
Main governing body for members of the stamp trade
Collector's Club of New York
Founded in 1896, the Collector's Club of New York is located in a landmark five-story brownstone, designed by famed architect Stanford White, located at 35th Street and Madison Avenue in New York City. Their goal is to further the study of philately, promote the hobby and provide a social, educational, and non-commercial setting for the enthusiastic enjoyment of our common passion.
Royal Philatelic Society of London
Oldest philatelic society in the world. Founded in 1869, permission to use the prefix 'Royal' was granted by His Majesty King Edward VII in 1906. It was ten years earlier that his son, HRH The Duke of York, became President of the Society, an office he continued to hold until his accession to the throne as HM King George V in 1910.
Collector's Club of Chicago
A great resource library from one of America's leading collector organizations
Carriers and Locals Society
Website devoted to this collecting area, publishers of the Penny Post.
Civil War Philatelic Society
Premier organization for the study of Civil War-related philately
U.S. Philatelic Classics Society
Classics Society, a great resource for research on classic U.S. stamps. Publishes The Chronicle, a quarterly publication
The Manuscript Society
An international society whose members cover all fields of autograph collecting.
Libraries and InstitutionsBack to Top
National Postal Museum
Link to the Smithsonian's National Postal Museum website
The British Library
Link to information about their philatelic collections
LiteratureBack to Top
James E. Lee
Jim Lee's website, specializing in philatelic literature
Philatelic Bibliopole
Philatelic literature dealer Leonard Hartmann's website
Philip Bansner
Phil Bansner's website, specializing in philatelic literature