Forgery exists at every level
Stamps from one-cent classics to modern airmail issues have been forged at one time or another. The skills to detect forgery are accessible to most collectors with a 10x loupe, a perforation gauge, and access to reference catalogue images. The most common forgeries imitate the most expensive stamps and the second-most-common targets are stamps with high condition premiums.
Paper and printing
Original stamps from the 19th and early 20th centuries used specific paper formulations and printing processes (line-engraved, lithographed, typographed) that produce distinct visual signatures under magnification. Forgeries rarely match the original paper texture, ink saturation, and microscopic line detail simultaneously.
Perforations and gum
Genuine perforations show clean, uniform holes punched in a single press operation. Forged perforations often show inconsistent hole spacing, rough edges, or incorrect gauge for the era. Original gum on unused stamps shows period-appropriate texture and yellowing; reapplied gum (regumming) shows uniform smoothness inconsistent with age.
Authentication for valuable purchases
For any purchase above a few hundred dollars, demand a current certificate from the Philatelic Foundation, the British Philatelic Association, or another recognised expert body. A 30-year-old certificate is no longer sufficient given advances in forgery techniques over the intervening decades.
Frequently Asked Questions
Is this stamps guide suitable for beginners?
Yes — this guide is written to be accessible to new collectors while remaining useful for intermediate enthusiasts. We layer foundational concepts with practical examples, expected price ranges, and authentication checkpoints so you can read once and reference repeatedly. If you are completely new, we recommend reading our beginner’s roadmap (/start-here/) alongside this material.
How current is the information in this stamps guide?
This guide reflects 2026 market conditions, grading standards, and authentication best practices. We periodically refresh content as auction records, grading-service criteria, and counterfeit techniques evolve. The guide’s last-updated timestamp shown by your browser corresponds to our most recent factual review.
What’s the most common mistake collectors make in stamps?
Buying before learning. The hobby rewards patience: collectors who spend the first 60-90 days reading, attending shows, watching auction results, and asking questions in established communities consistently outperform those who buy aggressively from day one. Education compounds; impulse purchases rarely do.
Where can I get items in stamps authenticated?
For most categories, established third-party authenticators include PSA, BGS, CGC, and SGC for cards; PCGS and NGC for coins; BBCE for sealed Pokémon and sports wax; AFA for toys; and recognized industry experts or auction-house specialists for watches, autographs, and fine collectibles. Independent verification typically costs $20-$200 and is well worth it for any item over $500. See our /authentication-hub/ for category-specific recommendations.
How do I sell stamps for the best price?
Match the venue to the value. Items under $100: eBay or Facebook collector groups. Items $100-$1,000: eBay with strong photography and detailed descriptions, or category-specific platforms (StockX, Discogs, Catawiki). Items over $1,000: established auction houses (Heritage, Goldin, Christie’s, Phillips) or vetted dealer consignment. Avoid pawn shops (typical offers: 20-40% of fair value) and unverified buyers offering instant cash.