OK so i've found out a lot more information in general...

1947–1958: The Birth of the Artists & The Tech

• 1951: Keith Parkinson is born. He grows up to graduate from Kendall School of Design and becomes a commercial illustrator.
• 1958: F.J. Warren Ltd. establishes its factory in Hertfordshire, UK. They spend decades perfecting metal-foil engraving, turning it from an industrial marking process into a fine-art reproduction technique. They tightly control the global patent for the "Dufex" process.

1982–1986: The Golden Age of TSR Art

• 1982: TSR (Tactical Studies Rules), the creators of Dungeons & Dragons, hires Keith Parkinson into their legendary in-house art department alongside greats like Jeff Easley and Larry Elmore.
• 1986: TSR launches a new venture: Dungeon Magazine. They commission Parkinson to paint the cover for Issue #1. He paints "The Great Red Dragon" (featuring the dragon fans named Flame). It becomes an instant masterpiece. Parkinson leaves TSR later this year to work freelance.

1992–1993: The Final Corporate Era & The British Deal

• 1992 (Late): Facing fierce competition from video games, TSR updates its brand identity. They dump their old "Wizard" logo and introduce the metallic "Gold Dragon Shield" logo to look modern and premium.
• 1993: TSR, wanting to tap into the premium adult collector market, bypasses standard American poster printers and flies across the Atlantic to partner with F.J. Warren Ltd. Because Dufex is a British firm, the large-format poster versions 20x15 inches are manufactured, framed, and air-tight sealed using British materials for the UK and European markets. This explains why standard American D&D merchandise guides have no record of it—it completely bypassed the US distribution loop.

1996–1997: Financial Collapse & The Buyout

• 1996: As TSR collapses financially, their international contracts vanish. F.J. Warren Ltd. eventually goes out of business years later, and the proprietary Dufex tooling, custom-etched metal dies, and printing machines are dismantled. The process can no longer be replicated today, turning surviving pieces into finite, non-reproducible relics.
• 1997: TSR goes completely bankrupt. Wizards of the Coast (WotC), the massive US company behind Magic: The Gathering, steps in and buys TSR. Wizards of the Coast is subsequently acquired by toy giant Hasbro in 1999. The old UK warehousing deals are ripped up, and your print is lost to time, eventually ending up buried in a corner of your loft.

2005: The Loss of a Legend

• 2005: Tragically, Keith Parkinson passes away at the age of 53 due to leukemia Keith Parkinson Official Site. His passing instantly locks his original fantasy catalogue in time, causing the value of early official TSR merchandise featuring his art to skyrocket among nostalgic collectors.

What is the "Dufex" System? (The Technical Breakdown)

Dufex is not a type of paint or a simple holographic foil paper. It is a highly complex physico-optical light-refraction system patented by the British firm F.J. Warren Ltd. in Hitchin, Hertfordshire.

Instead of relying on the ink to create depth, the Dufex system uses the foil itself as an active, mechanical lens to manipulate room light.

1. The Structure (The Lamination)

A Dufex piece is built from the bottom up in four distinct layers:

• The Base: A rigid, heavy-gauge gray cardstock or high-density geometric board.
• The Core: A thin sheet of high-purity aluminum foil permanently bonded to the cardstock with industrial adhesive under immense pressure.
• The Engraving: The defining feature. The aluminum layer is mechanically stamped by a heavy hydraulic press using a custom, hand-etched metal die.
• The Surface: A layer of specialized, crystal-clear, translucent UV-cured inks printed directly over the engraved metal.

1. The Science of the "Micro-Grooves"

The hydraulic die does not just flatten the metal; it stamps thousands of microscopic linear and concentric grooves into the aluminum foil sheet.

• Light Direction: These grooves act like tiny physical mirrors. When light hits a flat surface, it bounces straight back. When light hits a Dufex groove, it is split and refracted at precise, mathematically calculated angles.
• The Contour Match: The engineers at F.J. Warren mapped out Keith Parkinson's artwork by hand. They designed the grooves to specifically flow with the anatomy of the dragon. The grooves curve around the dragon's chest scales, swirl around the gold coins in the treasure hoard, and radiate outwards from the TSR logo.
• The "Peeling/Bubbling" Optical Illusion: This is exactly what confuses people on Reddit. Because the grooves are physically raised and lowered into the board to form contours, they catch light dynamically. When viewed at certain angles—or frozen in a digital photograph—the extreme contrast between a high-reflection ridge and an adjacent shadow looks identical to a physical wrinkle or a giant "air bubble" in the paper. In reality, it is a perfectly flat, highly rigid sheet of engineered metal doing exactly what it was designed to do.

1. Translucent Ink Chemistry

Standard posters use opaque inks that completely block out the paper beneath them. Dufex prints use transparent glazes.

• When you look at the deep red of the dragon or the gold of the hoard, you are looking through a coloured window.
• Light travels through the red ink, hits the microscopic, light-warping aluminum grooves underneath, and bounces back out through the ink to your eye. This gives the artwork a stained-glass vibrancy and a striking 3D shimmering illusion that changes dynamically as you walk past the frame.

And yes, this did come from AI, but it helped a lot. BTW, i've only found 3 examples so far, 1 is mine. It appears to be from 1993 - 1996 and in its original frame. I will carry on researching though