Category: Stamp Collecting Guides

Explore stamp identification, condition, formats and postal history. These guides explain the details to check when comparing collectible stamps and preparing questions for a supplier.Start with these guides.Identify added printing on a stamp Match an expertizing certificate to the offered item

Double-Rate Covers: Identify the Unit Behind the Charge

Check the historical unit, base rate and extra fees behind a double-rate cover claim instead of inferring the charge from stamp count alone.

Disinfected Mail: Assess the Evidence Behind a Slit

Separate a visible paper slit from a historical disinfection claim when reviewing postal-history material, using item-specific references.

V-Mail Letters: Identify the Form or Photographic Facsimile

Review whether a V-Mail offer contains a full-size letter form or a photographic facsimile, and ask for evidence tied to the actual object.

Paquebot Marks: Verify the Event Behind the Postal Date

Use a documented Hindenburg mail example to separate a later paquebot cancellation from a journey or disaster date when reviewing a postal-history offer.

Mourning Covers: What a Black Border Leaves Unanswered

Review a mourning cover’s black border without inventing its family story. Check the association between the envelope, surviving letters and claimed event.

RPO Markings: Check the Route Before Assuming a Train

Identify the route behind an RPO marking before assigning rail transport. A documented riverboat example shows which evidence a collector should request.

Stamp Inverts: State Which Parts Are Upside Down

Clarify an invert claim by comparing the orientation of the frame and center. Separate visible appearance, issue history and item-specific evidence.

Slogan Cancels: Locate the Message Before Choosing a Theme

Distinguish a slogan cancellation from stamp artwork and an envelope cachet. Request the complete wording and object needed for a thematic collection.

Duplex Cancels: Check the Postmark and Killer Together

Review both parts of a duplex cancel before choosing a used stamp or cover. Specify the date, place and cancellation evidence your collection needs.

Docketing on Covers: Identify the Note Before Using Its Date

Identify what a docketing note records before relying on its date. Compare postal evidence, letter dates and later annotations in a cover inquiry.