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PhD UCA. MA RCA
@thesahgb Manager
@qestcraft Gosling Foundation Scholar
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Continuing to shine a light on exhibitors in IDEA, CONCEPT, FIRE showing at Craft in The Bay, Cardiff until 26th October 2026.

Joshua Kerley and Dr Guy Marshall Brown have collaborated since 2022, developing an internationally exhibited practice in kiln-formed glass. Their work has been shown at the British Glass Biennale, Collect and GAS exhibitions, receiving the Bullseye Glass Living Edge Award and a nomination for the Brookfield Properties Craft Award.

‘This body of work represents the iterative and ongoing experimental practice of Kerley and Marshall Brown, challenging traditional modes of glass casting through digital mould-making and alterations to glass chemistry.
3D-printed mother moulds generate repeatable plaster-silica segments, which are assembled and filled with glass powder and a reactant. During firing, the glass expands and foams, producing unpredictable movement and form. Recent works introduce interventions mid-firing - adding extra glass to create varied melt and expansion, or allowing mould segments to shift or fall - to further encourage the glass foam to stretch in unexpected ways.
Across the pieces shown here, the mould systems are altered, reconfigured and, at times, deliberately destabilised to test how far the material can be pushed. Digital design provides a method for building and repeating complex structures, while the kiln introduces variables that cannot be fully controlled.
By working with, rather than against, the inherent unpredictability of the material, the artists allow each firing to open up new possibilities and inform the next iteration of the work. The resulting works invite a reconsideration of the medium - its perceived limitations, its structural potential, and its capacity for transformation through experimental making’.

📷 The Artists @guymarshallbrown @joshuakerleymaker @makerswales @beate.gegenwart #ideaconceptfire #bullseyeglass #foamglass by @guymarshallbrown
21
7 days ago
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We have some works in a very well curated, discipline rich, exhibition - IDEA, CONCEPT, FIRE at Makers Guild Wales

Thanks to @helencarnac and @beate.gegenwart for inviting us to show some of our more experimental works/failures alongside such talented other makers. 

The show is open until 25 October 2026, so if you find yourself in Cardiff then go and take a little look. 

All for sale if you want to buy them 💰

#foamglass #bullseyeglass #makerswales @makerswales taken in Makers Guild Wales by @guymarshallbrown
11
a month ago
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MEMBER SPOTLIGHTS: Kilpeck Church (The Church of St Mary and St David), @guymarshallbrown. Kilpeck Church remains a favourite building of mine, largely because of the extraordinary survival of its twelfth-century sculpture.

Built c.1134-40, it contains some of the finest work associated with the Herefordshire School of stone carvers. The south doorway is particularly remarkable: a Tree of Life, beakheads, twisting serpents, foliage, animals and the distinctive paired ‘warrior’ figures. Around the exterior, the corbel table continues this sculptural vocabulary through human heads, animals and grotesques, including the celebrated Sheela-na-gig on the apse.

The Herefordshire School drew on influences from France, Spain, Scandinavia and earlier British traditions, yet the result is unmistakably regional. It feels almost like a quiet act of cultural resistance: imported ideas absorbed, transformed and rooted firmly in the Welsh Marches.

The church is generally associated with Hugh de Kilpeck, probably responsible for its construction and an interesting figure in his own right. Known earlier as Hugh Forester, he inherited responsibility for the royal forests and held the office of forester of the Forest of Dean. His support for Empress Matilda during the Anarchy cost him both this office and his manors in the Dean. In 1134, he nevertheless endowed the new priory at Kilpeck as a cell of Gloucester Abbey, including the church of St David and the castle chapel of St Mary.

Kilpeck was also once a substantial medieval settlement. By 1259 it had a weekly market and annual fair, with its population possibly reaching around 600. Famine, absentee lordship and the Black Death subsequently contributed to its decline.

—

Dr Guy Marshall Brown is the SAHGB Manager, an artist, researcher and educator specialising in ceramic and glass sculptural practices, with particular interests in materiality and architectural ruination.

Member Spotlights is our new social media series seeking to highlight short notes from our members, trustees, and wider team. We invite submissions of approximately 250 words accompanied by original photography, via email to website@sahgb.org.uk. taken in Church of St Mary and St David, Kilpeck by @guymarshallbrown
11
a month ago
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Get twelve fantastic people to design interlocking plaster segments that combine to produce one large refractory mould. Get one high wizard to help you print all of the required PLA master moulds. Assemble the mould while boldly stating how clever you are. Rely on two clowns to fire the kiln who will promptly forget because they are preoccupied by eating cereal. The result is this experimental collaborative (over-fired) foam glass sculpture. 

Then, find the sexiest fella on campus, get him to strip down to his birthday suit and swim the piece out to the middle of a lake as some form of pseudo-performative ceremonial farewell offering to Pilchuck. 

@pilchuckglassschool 
@hannabrownnn 
@willbeattie 
@peterjacobsenglass 
@davidallenhevel 
@falonland 
@tomerlewis 
@yaelatzmony 
@low_rage 
@maryamriazi 
@inhaelee 
@jtc_art2022 
@c.s.h.a.e 
@mariatuckerjewelry 
@yeahsharvin taken in Pilchuck Glass School by @guymarshallbrown
31
a month ago
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Best of Pilchuck Session 7 — Part 2: Learning + Teaching.

A few highlights from our class, From Code to Kiln. What an exceptional group – curious, generous and wildly talented. Students took the digital and analogue techniques we demonstrated and transformed them into a fabulous body of work. One of the great joys of teaching is seeing ideas and techniques take on a life of their own. We are so proud of what this group created, and so grateful for the laughter and learning we shared.

Already feeling nostalgic. What a special two weeks 🫰

Special thanks to our wonderful workshop assistants; @willbeattie and @hannabrownnn, and all the year-round and summer staff at @pilchuckglassschool,  without whom this would not have been possible

And our fabulous students…
@davidallenhevel @jtc_art2022 @low_rage @falonland @c.s.h.a.e @yaelatzmony @tomerlewis @inhaelee @mariatuckerjewelry @maryamriazi taken in Pilchuck Glass School by @guymarshallbrown
5
a month ago
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Some of my favourite bits, made by some of my new friends. 

Pilchuck is a crazy place. 

#fruitofthekiwi taken in Pilchuck Glass School by @guymarshallbrown
32
2 months ago
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Want to learn from the 7th and 8th best looking fellas in glass? Lucky for you, there are still a few spots left on our @pilchuckglassschool class, From Code to Kiln.

Over the past four years, we have been refining this workflow together, and this class brings all of it into one place.

Using CAD software and 3D printing, students will learn to design and build intricate, multipart refractory moulds for kiln-forming processes including foaming glass and pâte de verre. Alongside developing individual works, we will also put a strong focus on collaboration. 

#pilchuckglassschool #bullseyeglass #foamglass #mouldmaking taken in Pilchuck Glass School by @guymarshallbrown
11
7 months ago
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Demoulding Boolean Additur.

Now showing in the 2026 Irving Open at @irving.gallery, Oxford, until Saturday 28th February.

@guymarshallbrown @joshuakerleymaker

#bullseyeglass #foamglass #glass by @guymarshallbrown
30
8 months ago
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Some details of a piece in the 2026 Irving Open at @irving.gallery, Oxford. 

Boolean Additur, 2026. 

The show is great, so make sure you take a look if you find yourself nearby. It’s open throughout February. 

@guymarshallbrown @joshuakerleymaker 

#bullseyeglass #foamglass #glass by @guymarshallbrown
20
8 months ago
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🪢 The ceramic knot has been tied 🪢 

19•05•2026

💍 Developed and made with Bonnie Mustoe Whitehill @bonnie_mustoe_whitehill 

📸 shots taken by Ellie Kenny @mastrelli.media by @guymarshallbrown
112
5 months ago
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We have been experimenting with a new series of wall based works, producing interlocking blocks of foam glass that expand and merge together as they are fired. We have got one on show currently at the wonderful @irving.gallery in Oxford, as part of the 2026 Irving Open - which remains open throughout February. 

Cryovesic Tessellation II, 2025, 20x24x7cm

@guymarshallbrown @joshuakerleymaker 

#kilnglass #bullseyeglass #foamglass by @guymarshallbrown
19
9 months ago
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Oh well... 

We have been working on this piece for quite some time, but unfortunately, when demoulding, we discovered the glass had cracked into several pieces at the joints between mould segments. These collaborative works often require significant development, numerous revisions, and extensive volumetric calculations, yet they still sometimes don’t work out. We wanted to show a failure to highlight how perilous the foam glass process is, how much time goes into works that never get realised, and how sometimes we fall at the very final hurdle. Still not defeated. Still good looking.

#guymarshallbrown #joshuakerley #glassart #glassobjects #kilnglass #castglass #bullseyeglass #bullseyeprojects #glassfoam #foamglass #mouldmaking #contemporarycraft taken in Mt Dissapoinment by @guymarshallbrown
30
a year ago
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