Resources

Research Tools


Power Search

Comprehensive search engine containing all of our auctions from 1993 to date, our Rarities sales since their inception in 1964, as well as some important older name sales.


The Siegel Encyclopedia

Informative articles about stamps, and when, how and why they were issued


Census Data

We have compiled comprehensive census information on some of the rarest United States stamps. New information is posted as we complete additional research


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.


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.


PSE Population Report

Automatically updated weekly, this allows you to determine the population report of any graded Scott number


Siegel Videos

Informative videos about important collections or items we have sold in the past

Today in History
Research whether any important historical events occurred on a certain day

Currency Converter
Convert between any currencies at today's exchange rate. Also contains some historical exchange rate information


The Curtis Collection

Privately maintained census of Revenue multiples. An amazing resource.


Hawaiianstamps.com

Comprehensive website devoted to Hawaiian philately.


U.S. Specimens Blog

A Wordpress blog for the enjoyment of U.S. Specimen stamps

Perpetual Calendar
Useful for dating postal history items

Authentication Committees


The Philatelic Foundation

Non-profit, specializes in United States stamps.


Professional Stamp Experts

Specializes in United States stamps, leading firm for grading


Confederate Stamp Alliance

Expertizing arm of the Confederate Stamp 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

Publications


Linn's Stamp News

Weekly Publication

Societies


American Stamp Dealer's Association

Main governing body for members of the stamp trade


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.


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.


Confederate Stamp Alliance

Premier organization for Confederate 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 Institutions


National Postal Museum

Link to the Smithsonian's National Postal Museum website


The British Library

Link to information about their philatelic collections

Literature


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