Via Colombo 11a, 58022 Follonica (GR)
+39 392 6231917
info@davidcarli.it
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MY CERTIFICATES

Essential elements that define the value of an item and protect your purchases.

My expertisation method

The certificates I issue are not simple statements of authenticity, but the final result of a structured expertisation process, based on experience, on an extensive specialised philatelic library, on a philatelic reference collection and a comparative photographic archive built and updated over more than thirty years of study and professional activity, as well as on the use of professional equipment dedicated to the analysis of paper, inks, cancellations, printing methods and overprints, without ever resorting to simplifications or convenient assessments.

Criteria for drafting certificates

Each certificate is drafted according to consistent technical criteria, applied uniformly regardless of the value or type of the examined item.


Direct and comprehensive examination, without relying on third-party descriptions or indirect assessments

Absolute rigour in identifying forgeries, repairs, retouching and manipulations

Systematic comparison with reference collections, photographic archives and relevant reference material

Technical description of the item’s condition, covering both directly visible elements and those detectable through instrumental examination

When necessary, the examination is supplemented by instrumental analysis using a microscope and by photographic documentation techniques, including infrared, ultraviolet and photomechanical photography, applied to the study of stamps, pigments, inks and documents of historical, collecting and, where relevant, legal interest.

Maximum security and traceability

To reduce the risk of subsequent substitutions or alterations, the image of the examined item is printed directly on the certificate. Each issued certificate is numbered and archived in my digital database and can be traced and reproduced in colour upon request, as documentation of the examination carried out.

Types of certificates

Each certificate is a complete photographic document, drafted after a direct examination of the material. The type of certificate depends on the nature of the analysed item: stamp, postal history document, or non-authentic material.

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Stamp certificate

Intended for single stamps, multiples or overprinted stamps, this certificate assesses the authenticity and state of preservation of the item. The analysis includes printing characteristics, paper, colours, and any defects or varieties relevant for collecting purposes.

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Postal history certificate

Designed for covers and postal history documents, this certificate examines frankings, cancellations, routings and applied postal rates. The document is placed within its correct chronological and postal context, verifying its historical consistency.

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Negative certificate

Requested when the examined item proves to be non-authentic, this certificate analytically describes the inconsistencies identified. It represents an essential technical reference in cases of disputes, refunds or returns.

Do you have questions or need an expert opinion?

Contact me for any information about my philatelic certification and consultancy services

Request information

Who is David

Since 1993 I have been involved in philately and postal history. Today I place this experience at the service of collectors, providing accurate expert opinions and certifications on stamps and postal documents from the Italian area.

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Contact David

Email:
info@davidcarli.it

Phone:
+39 392 6231917

I do not like social networks and I do not have any accounts.

Where to meet me

Throughout the year, I take part in several philatelic exhibitions and events. Check the updated calendar and, if you will be attending, feel free to meet me in person or entrust me with material for expertisation.

© 2025 David Carli - Philatelic Expert | VAT: 01234567890 | Via Colombo 11a, 58022 Follonica (GR), Italy