Designed 1978. Dormant Forty Years. Nova Plexus Scored 9/10 for WOW.

Most brass desk puzzles come from Brooklyn design studios and land in gift guides within a year.

The Nova Plexus Puzzle Sculpture ($79) was designed in 1978 by Geoff Wyvill, a professor at the University of Bradford, after he watched Georgian State Dancers lock twelve swords into a single airborne structure. He made 26 copies. Then he moved to New Zealand. Nobody produced another for forty years.

We score products across four dimensions. WOW measures uniqueness and discovery factor. Nova Plexus scored 9 out of 10. Here is what that number means and what we verified to reach it.

What We Found in the Origin Story

We traced the design to a specific moment. The Georgian State Dancers performed a routine in the mid-1950s that finished with twelve flexible swords locked together and held aloft by a single dancer. Geoff Wyvill saw this and spent years modeling the underlying geometry.

By 1978, he had a working prototype: twelve brass rods, four interlocking triangles, held together by friction at precisely machined notch intersections. No glue. No magnets. His colleague Monty, a civil engineering technician at the University of Bradford, machined the first rods to the exact specifications the structure required.

Wyvill produced 26 copies and intended a limited edition of 500 in stainless steel. That edition never happened. He moved to New Zealand, where he became Emeritus Professor at the University of Otago, and no more Nova Plexus puzzles were made.

For four decades, the only way to encounter one was in a puzzle museum or in Jerry Slocum’s “Book of Ingenious and Diabolical Puzzles,” the canonical reference that documented Wyvill’s design alongside work by Oskar van Deventer and Marcel Gillen.

How Two Collectors Revived a Forty-Year Gap

Ali Morris and Steve Nicholls read about Nova Plexus in Slocum’s book in 1994. It took them 25 years to track down the designer in New Zealand and convince him to complete the edition he abandoned in 1978.

They registered Two Brass Monkeys Ltd in Hertfordshire, England (Company #11949347) and began precision-machining the rods to the original specifications. The curvature tolerances from 1978 were so precise that modern attempts to reproduce the rods with updated equipment failed. Only the original specs from Monty at Bradford worked.

That production story matters for our WOW score. The 9/10 reflects verified rarity, not subjective impressions. A 25-year search to find a designer. A 40-year production gap documented in a canonical reference book. A geometry problem that resisted reproduction with modern tooling. We verified each claim independently.

Why 9/10 for WOW When We Already Feature Craighill

We feature the Craighill Jack Puzzle at $98 with a SleekNova Score of 8.8 and a WOW of 9. Both are brass. Both sit on desks. Both interlock.

The comparison ends there.

Craighill is a Brooklyn design studio founded in 2015. Six notched bars, milled in Rhode Island, assemble in minutes. It is a fidget object that doubles as sculpture. Nova Plexus is a geometry problem from the specialist puzzle community. Twelve rods, four interlocking triangles, rubber bands required for assembly, roughly an hour to solve. It collapses when someone picks it up wrong, and the rebuild restarts the challenge cycle.

The two communities barely overlap. Craighill appears in Dwell, Art of Play, Ugmonk. Nova Plexus appears in Allard’s Puzzling Times blog, on Mr Puzzle’s YouTube channel (where it received an absolute recommendation), and at Cubicdissection alongside puzzles costing three to four times more.

For people who are genuinely difficult to buy for, the discovery factor comes from that separation. This product exists in a parallel world of IPP conventions and cocktail-puzzle pairing blogs that mainstream gift guides never index.

The Other Three Dimensions

GLOW scored 8 out of 10. Twelve brass rods form four interlocking triangles. The geometric symmetry catches light from twelve reflective planes. Brass develops patina through handling, mapping to specific finger positions over months. Two Brass Monkeys note that some collectors prefer the aged look while others polish theirs to a mirror finish.

MOMENT scored 8 out of 10. The pouch opens and twelve brass rods pour into a palm. A small bag of rubber bands sits at the bottom.

Nobody has completed this puzzle without them.

The assembly takes roughly an hour at difficulty 9 out of 10. When four triangles finally lock into a self-supporting sculpture through nothing but friction, the object earns its place on the shelf. Then a visitor picks it up, twists gently, and hears twelve rods separate.

The rubber bands come back out.

TRUST scored 8.2 out of 10. Two Brass Monkeys Ltd is a registered company (#11949347) in Hertfordshire, England. We verified 21 product-specific Etsy reviews at 5.0 stars and 148 brand-wide reviews, also at 5.0, with Star Seller status. Eight specialist retailers in 6 countries stock their work: Cubicdissection (USA), Art of Play (USA), Crux Puzzles (UK), Puzzle Master (Canada), Sloyd (Finland), Puzzle Shop (Germany), JP Games (UK), and Mr Puzzle (Australia).

That distribution network, concentrated in specialist puzzle retail rather than design stores, is itself a trust signal our system values.

Who We Matched This To

Our gift intelligence identified this product for people who explain tensegrity at parties, keep a puzzle on their desk, value provenance over brand names, and enjoy challenges that take an hour rather than five minutes.

The primary match is gift-givers shopping for someone who is hard to buy for, specifically the recipient who categorizes gifts fast and stops thinking about them. Nova Plexus defeats that pattern. Twelve loose rods resist initial categorization. The assembly blocks the filing-away instinct. The collapse-rebuild cycle, triggered every time a visitor handles it wrong, means the object never settles into “understood.”

At $79, it sits in the under-$100 range where gift risk is low. The brass is unlimited (unlike the numbered stainless steel limited edition), but machined to identical standards. For colleagues, it reads as intellectually curious without overstepping. For birthdays, the origin story does the wrapping: Georgian sword dancers, a Bradford workshop, a 40-year gap.

What Gives Us Pause

We document hesitations alongside scores. The Etsy shop goes on vacation periodically, though Cubicdissection maintains stock at the same $79 price. Only 21 product-specific reviews exist (the 148 figure is brand-wide). Difficulty is rated 9 out of 10 with rubber bands required, which means this is wrong for anyone who gets frustrated by hour-long challenges.

There is no printed solution included. And brass tarnishes, which is either a feature or a flaw depending on the recipient.

The overall SleekNova Score is 8.4 out of 10, clearing our 8.0 threshold. WOW at 9 carries the strongest weight in a product defined by its origin story. The scores reflect what we verified: a registered UK company, a professor’s archived design, a canonical reference book citation, and a specialist retail network spanning six countries.

For the person who has seen every brass desk object the design world produces, this comes from somewhere they haven’t looked.