For the more than 50 years that we have been in the auction business, we have also acted as intermediaries in the buying and selling of philatelic items directly between collectors (by Private Treaty) – from single stamps and covers of great rarity, to specialised collections & exhibits, in addition to accumulations, dealer’s stocks and printer’s archives.

With our reputation for having sold more high-quality rarities than any other auction firm, there is no one else better positioned to assist collectors in the buying and selling of major rarities. Our years of experience and contact with our clients means we can advise them in the development of their collections as not only do we know which items exist that will take a collection to the next level, but more importantly, we also know where to find those showpiece items.

So if you would like to benefit from or wealth of knowledge and experience, please contact us today.

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Send us photographs or scans of your stamps and our experts will advise you whether they are suitable for auction.

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We at David Feldman are delighted to present these three stunning exhibition items for sale by Private Treaty.

Price on Request

1840 One Penny Black Plate II used on the 13th May entire, bearing TL in a deep shade, showing double T and external guidelines, good to large very large margins all round from the lower right corner of the sheet showing part inscription “ove the cement” at foot, and additionally showing the plate number “2” in the lower right corner. This iconic cover is, without question, one of the most important and most desirable covers of British philately and probably the finest one penny black on cover in existence. A great exhibition item of the utmost rarity with this being only its third public appearance for sale since 1942.

Provenance: L.E. Meinertzhagen, March 1942


Price on Request

1840 One Penny Black SK-TL, a magnificent marginal mint inscriptional block of four from the lower right hand corner of the sheet, showing full deckle edge on two sides and part inscription at foot “areful not to remove the cement” additionally showing the plate number “3” in the lower right corner, large balanced margins on the other two sides, virtually full original gum with some light hinge remainders at top; a hugely rare and exceptional block of exhibition quality, and the only piece from plate three showing plate number one of the rarest of all the black plates. Last sold by private non publicised sale in 2009, This is the first time the block has been offered publicly in over 20 years.

Provenance: Ex Bolaffi

Price on Request

1840 One Penny Black TL imprimatur with corner sheet margins showing the plate number “3” and margin inscription, “… ove the Cement”, the other margins are exceptionally large; some thinning under some old hinge remnants, not detracting from the major importance of this exceptional positional piece of the utmost rarity, an incredible exhibition piece being the only plate number imprimatur available in private hands from this plate.

SOLD IN 2019:


We are delighted to announce the successful sale by private treaty of the Jammu and Kashmir collection formed by the late Dr. Wolfgang Hellrigl. Scans of the complete collection can be found on our Museum of Philately app for Android and Apple devices.

SOLD IN 2019:


The complete collection which has been the basis for the famous book by M. Peter and R. Soderberg published in 2011. This reference collection shows an in-depth study of these fascinating issues, Most items neatly and knowledgeably mounted on exhibition pages.

An extensive study on the thin and thick overprint issues with numerous complete sheets of 50 showing the type 1 to 25. Outstanding items include the so-called Stolz & Co. proof overprints including the extremely rare type II (only two examples known, both in this collection). In-depth study of the 25 different types with many examples unused, used or on piece together with many identified forgeries. Over 240 covers and cards, practically all commercially used with multiples frankings, mixed-issue frankings (including several items with Pro Juventute issues), with fascinating explanation of rates, also used forgeries on cover, etc., also further study of the overprints neatly ordered on stockcards originating from the Rellstab archive.

A truly astonishing holding and a fantastic basis for a large exhibition collection. Complete scans of the collection are available on our website.