Copperplate · Glyph · Published 2026-10-01 · By The Lettering Desk
Copperplate capitals: where the shade goes, and how big a flourish may be
Capitals are the part of copperplate that most often goes wrong, for two reasons that have nothing to do with each other: the pressure rule inverts — capitals take their shade on the *upstroke* — and flourishes invite decoration that the hand cannot yet control. The M is a good test case because it has no curves to hide behind.
- Glyph
- M — Capitals and the flourish
- Hand
- Copperplate
- x-height
- 5 mm；大写高 15 mm（3 个 x 高）
- Nib / brush angle
- 55° 斜度；花体环径不超过 1 个 x 高
- Tool
- Hunt 101 / Brause 66EF 配斜杆笔，笔尖略钝以免划纸
- Stroke order
- 左主干 → 中折 V → 右主干 → flourish 花体（4 strokes）
Stroke sequence
The inverted pressure rule
In the minuscules, pressure goes on the downstroke. In the capitals of most copperplate models it goes on the upstroke, and the downstroke is the hairline. This is not a stylistic quirk — it is what gives a capital its weight at the top, where the eye expects the letter to be widest.
The switch happens at the baseline. When you finish a word and start a capital, or drop from a capital into minuscules, the pen must change its pressure logic in the space of one stroke. Practise the transition explicitly: write M followed by a single o, twenty times, checking that the M's last stroke is heavy and the o's first is not.
Height and proportions
| Element | Height | Notes |
|---|---|---|
| capital height | 15 mm (3 x-heights) | the standard working size at a 5 mm x-height |
| left stem | full 15 mm, entering below the baseline | the entry descends one x-height below the baseline before rising |
| central V | 13 mm | stops about 2 mm short of the baseline so it does not close the letter up |
| right stem | 15 mm | ends on the baseline and turns straight into the flourish |
| flourish loop | ≈ 5 mm across | one x-height is the ceiling |
Flourish discipline
A flourish is a decorative continuation of the letter's exit, and it obeys three rules: it stays in hairline, its loops stay under one x-height in diameter, and it re-enters the letter's body rather than trailing off to the right. The third rule is the one that separates a flourish from a scribble — the pen should finish pointing back into the letter, not out into the margin.
Loop size deserves its own note. Loops larger than an x-height look impressive when practised alone and disastrous on a page, because they collide with the adjacent letters. If you want visible decoration, add a second small loop rather than increasing the diameter of the first.
Capitals in context
On a finished page a capital is judged against the words around it, not in isolation. Two checks worth doing: the capital's total width should not exceed the width of three minuscules, and the space between the capital and the first minuscule should be about half of the space between two minuscules. Copperplate set too tightly at the capital reads as a modern sans-serif squeezed into a script.
Finally, keep the cap-height consistent across a page. A 15 mm capital on line one and a 13 mm capital on line four is invisible while writing and glaring when the sheet is finished.
Printable A4, drawn to the worksheet specification — print at 100 % and check one cell with a ruler.
Takeaways
- Capitals put the shade on the upstroke and the hairline on the downstroke — the pressure rule inverts.
- Capital height is 3 x-heights; at a 5 mm x-height that is 15 mm.
- Flourish loops stay under one x-height across and finish pointing back into the letter.
- Keep capital-to-minuscule spacing at about half the minuscule-to-minuscule spacing.