About
RPSL Experts is the philatelic authentication arm of the Royal Philatelic Society London, operating through RPSL Limited. Established in 1894 in response to a wave of sophisticated stamp forgeries, the Expert Committee has grown into one of the world's most authoritative and trusted philatelic expertising bodies, issuing roughly 2,500–3,000 certificates per year and nearly 210,000 in total. The committee is composed of unpaid volunteers selected for both specialist knowledge and broad collecting experience. Submitted stamps — referred to as 'patients' — are examined against extensive photographic records of past opinions and a substantial reference collection of genuine and forged material. The committee also has privileged access to the Royal Philatelic Collection and the Tapling Collection at the British Library for comparison purposes. The service employs state-of-the-art technology, including the VSC 8000/HS video spectral comparator, to analyse ink optical properties and detect alterations such as added margins, faked perforations, repairs, and misattributed covers. Forensic philately techniques are applied to the most difficult cases. RPSL Experts is ideal for serious philatelists, auction houses, dealers, and investors who need trustworthy certification before buying, selling, or insuring valuable stamps. Applications can be submitted with supporting information; certificates are issued following scheduled committee meeting dates published in advance.
Key Features
- Official Authentication Certificates: Certificates issued by the RPSL Expert Committee serve as internationally recognised proof of genuineness or identification of forgeries and alterations.
- Forensic Analysis Technology: The committee uses the VSC 8000/HS video spectral comparator to examine ink properties and detect subtle physical alterations invisible to the naked eye.
- Extensive Reference Collections: Experts compare submissions against photographic archives of 210,000+ past opinions, genuine reference material, forged specimens, the Royal Philatelic Collection, and the Tapling Collection.
- Scheduled Expert Committee Meetings: Meetings are held approximately every six weeks, with published dates so submitters can plan their certificate applications accordingly.
- Forensic Philately Service: Specialist forensic examination identifies complex alterations including added margins, repaired perforations, fake cancellations, and stamps fraudulently added to covers.
Use Cases
- A philatelist purchasing a rare classic stamp at auction submits it to RPSL Experts to obtain an authentication certificate before finalising the transaction.
- A stamp dealer uses RPSL certificates to provide buyers with trusted provenance documentation, increasing buyer confidence and sale value.
- An insurance company requires an RPSL certificate as proof of genuineness before underwriting a high-value philatelic collection.
- A collector suspects a vintage stamp in their possession has been repaired or had its perforations faked and submits it for forensic examination.
- An estate executor submits an inherited stamp collection to the Expert Committee to establish authenticity and value prior to sale or probate.
Pros
- World-Renowned Authority: Over 130 years of continuous operation and 210,000+ certificates make RPSL Experts one of the most respected philatelic expertising bodies globally.
- Access to Unrivalled References: Privileged access to the Royal Philatelic Collection and British Library's Tapling Collection gives the committee comparison resources unavailable elsewhere.
- Technology-Assisted Examination: Modern forensic equipment supplements human expertise, enabling detection of sophisticated alterations that visual inspection alone cannot reveal.
Cons
- Paid Service with Variable Fees: Certification incurs fees that can be significant for high-value items, making it less accessible for casual collectors with lower-value stamps.
- Infrequent Meeting Schedule: Certificates are only issued after scheduled committee meetings held roughly every six weeks, meaning turnaround times can be lengthy.
Frequently Asked Questions
How do I submit a stamp for expertising?
You complete a Certificate Application via the RPSL Experts website, pay the relevant fee, and send your stamp to the committee for examination ahead of a scheduled meeting date.
How long does it take to receive a certificate?
Turnaround depends on the next scheduled committee meeting date. Meetings are held roughly every six weeks, so you should factor in that timeframe when planning a submission.
What does the certificate confirm?
The certificate records the committee's expert opinion on whether the stamp is genuine, a forgery, or has been altered in some way (e.g., faked perforations, repaired margins).
What is forensic philately?
Forensic philately uses scientific techniques — including spectral imaging, paper and ink analysis, and comparison with reference material — to detect forgeries, alterations, and repairs that cannot be identified by eye alone.
How many certificates has the RPSL Expert Committee issued?
Since 1894 the committee has issued nearly 210,000 certificates, adding approximately 2,500–3,000 new ones each year.
