Uno Toru – Dramatisches 'Yōhen'-Ofen-Transformationsgefäß – Kalligraphie-Wasserkrug / Teeschale - Porzellan - Uno Toru - Japan - Shōwa Zeit (1926-1989)

– Contemporary potter known for dramatic yōhen (kiln transformation) glazes – Small vessel suitable as calligraphy water pot (fude arai) or tea bowl – Unpredictable glaze effects created by complex kiln atmosphere

Summary: This is a small ceramic vessel by Uno Toru, featuring the dramatic yōhen (kiln transformation) glaze effects for which the potter is known. The piece is suitable for use as a water pot for Japanese calligraphy (fude arai) or as a tea bowl, demonstrating the functional versatility characteristic of Japanese studio ceramics. Yōhen glazes are notoriously difficult to control, with colours and patterns emerging unpredictably during high-temperature firing. The compact size and striking glaze make this an appealing piece for collectors who appreciate the element of chance in ceramic craft.

Potters spend years learning to control their materials – clay consistency, glaze recipes, kiln temperatures. Then, if they're brave enough, they learn to surrender that control and let the fire create effects no human hand could plan. Yōhen glazes – the term translates as "kiln transformation" – represent that delicate balance between skill and accident.

Uno Toru works in the tradition of Japanese studio potters who pursue dramatic glaze effects created by complex kiln atmospheres and high firing temperatures. Yōhen glazes typically involve metallic oxides that transform during firing, creating iridescent surfaces, crystalline formations, or dramatic colour shifts. The most famous historical example is Chinese Song dynasty Jian ware tea bowls, some of which developed spectacular oil-spot or hare's-fur patterns that were treasured by Japanese tea masters. Contemporary potters like Uno continue this pursuit, chasing effects that emerge only through careful manipulation of firing conditions and a willingness to accept unpredictable results.

This small vessel shows the characteristic variability of yōhen glazes. The surface likely displays shifting colours – perhaps blues, purples, browns, or metallic sheens – that change depending on viewing angle and lighting. Such effects cannot be precisely replicated, making each piece genuinely unique. The form itself is modest and functional, allowing the glaze to take centre stage. The size and proportions suggest use either as a water pot for washing calligraphy brushes (fude arai) or as a small tea bowl, demonstrating the Japanese aesthetic principle that beauty and utility should coexist.

In contemporary interiors, small vessels like this work beautifully as display objects that invite close inspection. The compact scale makes them ideal for shelving, desk surfaces, or as part of a curated collection of ceramics. The dramatic glaze provides visual interest without requiring significant space, and the functional origins mean it could equally serve its original purpose or simply exist as a contemplative object.

In excellent vintage condition overall with only minor signs of age and handling. The yōhen surface may show natural variations in glaze thickness and colour distribution, which are intentional effects rather than flaws. No structural damage or repairs are visible. The piece is suitable for display or gentle functional use.

Contemporary Japanese potters pursuing dramatic kiln-transformation effects continue a tradition that stretches back centuries. The element of unpredictability in yōhen glazes appeals to collectors who appreciate the collaboration between potter and fire, where technical skill creates the conditions for beautiful accidents to occur. Works by dedicated practitioners like Uno Toru demonstrate both mastery and humility – controlling what can be controlled, then accepting what the kiln provides.

If you're drawn to Japanese ceramics that celebrate the unpredictable beauty of fire, this piece offers a fine example of contemporary yōhen work. Let it become a small treasure that rewards close attention with ever-changing visual interest.

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