A Postcard or post card is a rectangular piece of thick paper or thin cardboard intended for writing and mailing without an Envelope and at a lower rate than a letter.  Stamp collectors distinguish between postcards (which require a stamp) and postal cards (which have the postage pre-printed on them). … Continue reading


A Postmark is a postal marking made on a letter, package, Postcard or the like indicating the (more or less precise) date and time that the item was delivered into the care of the postal service.  Modern postmarks are often applied simultaneously with the Cancellation or “killer” that marks the postage stamp(s) as having been used (though in some circumstances there may be a postmark without a killer, and sometimes the postmark and killer form a continuous design), and the two terms are often used interchangeably, if incorrectly. … Continue reading


Revenues are stamps representing the prepayment or payment of various taxes.  Revenues are affixed to official documents and to merchandise.  Some stamps, including many issues of the British Commonwealth, are inscribed “Postage and Revenue” and were available for either use.  Such issues are usually worth less fiscally canceled than postally used. … Continue reading


Stationery or Postal Stationery is stationery bearing imprinted stamps, as opposed to adhesive stamps.  Postal Stationery includes postal cards, lettercards, stamped Envelopes, wrappers, Aerograms, telegraph cards, postal savings forms and similar government-produced items.  The cost to the mailer is often the price of postage plus an additional charge for the stationery item.… Continue reading


Thematics is concerned with the collection of stamps or Covers relating to a specific topic.  The topic is expanded by careful inquiry and is presented as a logical story.


Transit Markings

Post mark applied by an intermediate post office between the place of origin and destination.

Transit Markings


A Watermark is a recognizable image or pattern in paper that appears lighter when viewed by transmitted light (or darker when viewed by reflected light, atop a dark background).  A watermark is very useful in the examination of paper because it can be used for dating, identifying sizes, mill trademarks and locations, and the quality of a paper.… Continue reading