Aviation issues, routes, rates, and covers.
What to record
- issuing country or authority and postal purpose
- design, denomination, inscriptions, color, and format
- paper, watermark, perforation or separation method
- mint or used state, gum or cancellation, and all faults
What commonly causes mistakes
- assuming age or an unusual appearance means rarity
- matching only the portrait or color while ignoring paper and perforation
- confusing damage, missing teeth, fading, or staining with a production variety
- using an asking price or unrelated certificate as value evidence
A practical research sequence
- Photograph front and back at high resolution.
- Transcribe every inscription and record denomination, color, format, and cancellation.
- Narrow the catalog family using paper, watermark, perforation, printing, and issue date.
- Inspect condition and alterations before comparing certified or sold examples.
Condition and value
Value depends on exact identity, condition, centering, gum or cancellation, faults, certification, demand, and a defensible comparison set. A famous design does not automatically make an individual example rare.
Compare current collector listings
Use listings to study descriptions, scans, certificates, and market supply. Asking prices are not completed-sale evidence.
Compare collector listingsSeparate loose stamps from verified flight covers
A scarce airmail stamp, a common souvenir cover and a genuinely flown postal-history item are distinct collector categories. Match route, date and cancellation evidence.
Check before you buy
- Read the date, origin, destination, transit markings and backstamps on covers.
- Check whether cachets are official, private, retrospective or souvenir.
- Compare catalog identification to perforation, watermark and condition.
Compare current eBay listings
Affiliate disclosure: this site may earn a commission from qualifying purchases at no extra cost to you. Marketplace results change. Check the actual listing photos, condition, measurements and seller details; a search match is not authentication or compatibility proof.
Continue researching: Early U.S. airmailGraf Zeppelin issues