In April we added one small thing to the collection: the Vetro wall light. It came to the bench in the late winter, passed through four versions, and left the last of them smaller than it started. Nothing about it announces itself. That was the brief.

Form, reduced

A single disc of mouth-blown glass sits close to the wall on a plate no wider than a palm. The glass is thick at the centre and thins towards the edge, so the light gathers there and lets go slowly, and the plaster behind it takes on a round soft glow that stops where it wants to stop. There is no shade, no arm, no visible fixing. Switched off, the piece reads as a pale circle on the wall, a small moon somebody left behind. Switched on, the glass goes away and only the glow stays.

What remained, and what we took out

• A hand-blown glass disc, made one at a time, never quite the twin of the last.
• A brushed metal plate that carries the weight and keeps the wiring out of sight.
• A single warm source, dimmable, set back far enough that the eye never meets it.

Three elements disappeared between the first drawing and the fourth. Each removal made the piece harder to build and easier to live with, which is generally how it goes here. A disc this size has nowhere to hide: every bubble, every faint tilt, every uneven edge sits at eye level, on a wall, for years. So most of the work went into the parts nobody looks at.

A lamp that asks for nothing gives the room back to itself.

Since the first pieces left us this spring, the notes that come back are mostly about corridors, stair landings, the wall beside a bed — the half-lit places of a house where a loud object would be a nuisance. People write that they forget the lamp and remember the light. We will take that.

Quiet, on purpose.