De Vick’s Clock of 1379

after Abraham Rees (ed.), c. 1810s

The ComplicationPA-00543Tear sheet

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No print size passed the check for this piece: at 8 x 10 in, Wrong shape: a 14% crop. We would rather show it than sell a soft print.

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Henri de Vick's clock, built around 1379 for Charles V of France, is the textbook ancestor: the earliest well-documented mechanical clock in the modern line, verge escapement and foliot balance ticking above Paris four centuries before the pendulum. This plate from Rees's Cyclopaedia is how the nineteenth century learned that story — the primitive frame drawn with complete seriousness, because everything in every watch descends from exactly this arrangement of weight, rope, and restraint.

Maker
after Abraham Rees (ed.)
Date
c. 1810s
Medium of the original
Plate
Original held by
via Wikimedia Commons
Credit
via Wikimedia Commons · via Wikimedia Commons
Rights
Public domain, verified
Catalogue number
PA-00543

Before a size goes on sale, the file is measured against it: pixels per inch at that size, how much of the picture a crop would lose, tone and sharpness. A size that fails is not offered, so there is nothing to choose wrong.

How the print check works

Sizes withheld
SizeWhy
8 x 10 inWrong shape: a 14% crop
8 x 12 inWrong shape: a 29% crop
11 x 14 inWrong shape: a 16% crop
12 x 16 inWrong shape: a 20% crop
12 x 18 inWrong shape: a 29% crop
16 x 20 inWrong shape: a 14% crop
16 x 24 inWrong shape: a 29% crop
18 x 24 inWrong shape: a 20% crop
20 x 30 inWrong shape: a 29% crop
24 x 30 inWrong shape: a 14% crop
24 x 36 inWrong shape: a 29% crop
30 x 40 inWrong shape: a 20% crop
36 x 48 inWrong shape: a 20% crop
40 x 60 inWrong shape: a 29% crop
Scanned
2026-10-07
Master file
1,276 x 1,368 px, srgb
Tone
Darks 85, lights 254 of 255; 42.5% clipped light, 0% clipped dark
Colour
0% vivid
Sharpness
7.2
Notes
  • Pure white on 43% of the image, mostly the sheet itself: it prints as the paper's white

About the house

The Complication

Huygens’s pendulum, Harrison’s chronometer engravings and the astronomical tower.

All 19 pieces from The Complication

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