Why Is The Night Watch Famous?

In 1715 the painting was moved to Amsterdam's town hall and installed between two columns. It did not fit. Rather than find another wall, the city trimmed the canvas on all four sides: around 60cm from the left, 22cm from the top, 12cm from the bottom, 7cm from the right. The strips were discarded and have never been found.

The left-hand cut is the serious one. It took two figures and a small boy, and it moved the captain and his lieutenant from off-centre — where Rembrandt had them, striding into the space he had left — into the middle, where they look posed. The Rijksmuseum reconstructed the missing sections in 2021 from a small contemporary copy by Gerrit Lundens, and the difference is not subtle.

Rembrandt painted a militia company moving out in daylight, from a shadowed archway into strong light. The name attached itself much later, once generations of darkened varnish and Amsterdam soot had turned the background into something like night. It stuck because it beat Militia Company of District II under the Command of Captain Frans Banninck Cocq.

The general point recurs constantly in the trade: a great deal of what people take for a painting's character is dirt. Old varnish yellows and then browns, flattens contrast, warms every colour, turns blues green and afternoons into evenings.

In 1911 a shoemaker went at it with a knife and got no further than the varnish. In 1975 a man cut into the canvas repeatedly, leaving long zigzag tears through the figures; the repairs are still faintly visible in raking light. In 1990 a visitor sprayed acid, and attendants flooded the picture with water fast enough to keep the damage in the varnish layer.

It is still a Rembrandt after all that because of documentation. Every intervention was recorded, argued over and published, and Operation Night Watch — running in a glass enclosure in the gallery since 2019 — is the largest research and conservation project ever undertaken on a single painting.

Two paintings by the same hand, same period, same size, can differ by an order of magnitude on condition alone. What the market punishes is not damage as such — almost every old picture has been restored — but irreversible alteration, undisclosed work, and losses where they matter. A tear in the sky is a repair. Overpaint across a face is a different painting.

It punishes the wrong kind of help too: a trimmed canvas, a badly relined support, a picture cut down to fit a frame, cleaning that has taken the final glazes off a face. Each is permanent, each is obvious to a specialist, and each is discounted hard.

Leave it alone, and leave the frame alone. Do not clean it, do not have it trimmed or relined to fit anything, do not bin the backboard, and never reframe a picture by cutting the canvas. If it needs attention, get a written condition report from an accredited conservator and keep it with the work — that paperwork is part of the asset.

Photograph it with the Art Identifier for a likely hand, period and indicative range, and read that as a starting point. The house examines nothing in person, authenticates nothing, issues no certificates and appraises nothing; where the answer decides real money, a conservator and an independent appraiser are the people who should be in front of the picture.