US Patent 10,744,796  ·  Single source worldwide  ·  ARS New York

Iron
Gall

Described by Pliny the Elder, 77 AD.
Used to authenticate the Magna Carta.
Patented for the monotype, 2020.
One process exists.

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Every authenticated piece carries  No 556

Printed in the United States of America

Lineage

Two thousand years.
One chemistry.

77 AD Pliny the Elder documents iron-tannin reactions in Naturalis Historia, the first recorded description of what would become the world's most durable ink chemistry.
c. 1100–1600 Iron gall becomes the standard medium of Western civilization. It writes the Magna Carta, the correspondence of Leonardo da Vinci, the scores of Bach, and the etchings of Rembrandt.
Gilded Age The contracts of Edison, Ford, and Flagler. Signed, sealed, authenticated in iron gall. The patents that built the American century were recorded in iron gall ink. The chemistry did not merely witness history. It certified it.
2020 US Patent 10,744,796 is granted for the iron gall monotype process, the first and only patent of its kind. The chemistry that authenticated civilization's most important documents is now protected as a monotype medium. One process. One source.
Present Williamstown Art Conservation Center confirms the iron signature via XRF analysis, photomicrography, and Fe²⁺ spot testing. The process behaves as a physically unclonable function: impossible to duplicate, impossible to transfer. Verified by conservation science. Protected by law.

Printed in the United States of America

Single source worldwide  ·  US Patent 10,744,796  ·  KMX Research LLC

The series

After Mr. Flagler's Artists

Henry Flagler, co-founder of Standard Oil with John D. Rockefeller, built the Hotel Ponce de Leon in 1888 with his handpicked preeminent artists. Martin Johnson Heade, whose works hang in the White House and the National Gallery of Art, held Studio No. 7. Louis Comfort Tiffany designed the interiors. Shapleigh, Coman, de Crano among others, invited by men for whom industry and invention were inseparable from beauty. Flagler built a railroad and a hotel worthy of what he believed the American character could become. The contracts that built the century and the canvases that recorded it were signed and sealed in the same chemistry. Iron gall ran through both.

Each monotype works from that same historical record. A custom image precursor is derived from historical reference, itself unique, legacy, unrepeatable. A precisionist converts it through the patented iron gall process into a chemical object within the paper fiber. Each finished piece is sealed with Renaissance Wax, the microcrystalline conservation wax developed at the British Museum, bearing a royal warrant, used in museum collections worldwide. Approximately 4 × 3 inches, a deliberate return to the intimacy of original daguerreotypes and cabinet cards. Small enough to slip between the pages of a library book. Permanent enough to outlast the library. The result is not a reproduction. It is a legacy: singular, verified, and permanent.

"The chemistry cannot produce the same piece twice."

Iron gall monotype — Portrait of Henry Flagler

Henry M. Flagler

Iron gall monotype — After Mr. Flagler's Artists, Florida waterway

After Mr. Flagler's Artists

Peter Pereira monogram — McIntyre Patents

McIntyre Patents

No 556  ·  US 10,744,796

The P is the personal monogram of Peter Pereira, Wabash engineer, great-grandfather of the inventor. Killed in a collision near Ritchie, Illinois, October 17, 1899. His fireman jumped. He stayed with the engine.

Authentication

Why it cannot be faked

Holograms are mass-duplicated. RFID chips are cryptographically broken. DNA taggants transfer by swab. Blockchain cannot bind a record to a physical object. Iron gall is different in kind.

Chemistry-embedded

The iron signature lives inside the paper fiber, not applied, not laminated. XRF analysis confirms iron ion concentration within the print itself. It cannot be swabbed, transferred, or cloned.

Third-party verified

Williamstown Art Conservation Center: XRF analysis, photomicrography, UV examination, Fe²⁺ spot testing. The examination record is on file. This is documented science, not a claim.

Patented and traceable

US Patent 10,744,796. Each piece carries a dated Declaration of Authenticity with a serial number coded to KMX Research LLC D-U-N-S No. 13-748-6455. One exists. One only.

Artists Rights Society

Kevin A. McIntyre is registered with Artists Rights Society (ARS), New York, the same organization that administers rights for Picasso, Warhol, and Matisse. Every iron gall monotype carries the ARS copyright notice.

Museum-grade conservation

Each piece is sealed with Renaissance Wax, the microcrystalline conservation wax developed at the British Museum Research Laboratory in the late 1950s, bearing a royal warrant. The standard for museum collections worldwide.

Declaration of Authenticity — Iron Gall Print No. 9.13.a 01

Declaration of Authenticity

Every authenticated iron gall monotype is issued with a Declaration of Authenticity affixed directly to the work. The declaration carries the print number, handwritten serial, the Artists Rights Society copyright notice, and US Patent No. 10,744,796.

IRON GALL PRINT  /  No ___________

© Kevin A. McIntyre  /  Artists Rights Society (ARS) New York, New York

Printed in the United States of America

U.S. Patent No. 10,744,796  ·  KMX Research LLC  ·  D-U-N-S 13-748-6455

Acquire

Two ways to own the work

Commemorative edition

Commemorative print

A commemorative iron gall print of a local or historical subject. Smartly casual and charming for a vacation cottage or a year-round home. Small enough to hide in a book. Carries the No 556 mark.

$295

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Collector tier

Authenticated monotype

After Mr. Flagler's Artists series. Patented iron gall chemistry. Williamstown-verified. Declaration of Authenticity. DUNS-coded serial number. Hand-colored with Henri Roché pastels.

Each piece is a unique monotype. No two exist.

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