Pick a brand and take away a Word file. The logo is the approved paste copy, held at 0.725 cm of artwork on every one of the nineteen, so a COZ COG letterhead and a COZ CONTROLS letterhead put COZ on the page at one size. The country line is a field rather than a box somebody has to drag, which is the whole point: the group can grow a country without anyone reopening Word.
Everything on the sheet is derived from two things: the paste copy's own centimetres, and the width of the text block. Nothing is placed by eye and nothing is placed against the page, which is the difference between this and the letterheads it replaces.
The logo is the paste copy, unchanged.
assets/logo-doc-paste.svg for COZ CLUB and
assets/companies/<brand>-doc-paste.svg for the eighteen: artwork
0.725 cm tall, H/4 of padding below it and nothing anywhere else,
the file 0.9063 cm. Held by height across the whole family, so the width
is the only thing that moves, 3.55 cm on COG to 6.21 cm on
CONTROLS. The letterhead did not need a new size; it needed the one the system
already holds.
The rule is the text block, in three. Orange, blue, green, 0.15 cm deep, with 0.138 cm of paper between them — three bars, not one bar changing colour, which is the measurement the supplied files carry and the thing that is easiest to lose. It is a table rather than the three drawn shapes they use, and that is what makes the width impossible to get wrong: a table sized to the text block cannot drift from it, and it follows a change of page size without being repositioned.
The country line holds the right edge. It sits in a cell that runs from the end of the logo to the right margin, so a longer list grows into real space instead of overflowing a fixed box. On COZ CONTROLS, the widest logo in the family, that still leaves a shade under 12 cm for a line which currently sets to about 6.4 cm: roughly twice the countries before it has to wrap.
The header band
The footer, and why it moved
It does not invent a descriptor. COZ CONSTITUTION and COZ CURATE have
approved wordmarks and no CLUB of… line written down anywhere, so their
letterhead carries the slot and leaves it empty. Putting words nobody has signed off
onto company stationery is not a thing a generator gets to do, and it is the same
refusal tools/generate-siblings.py makes in the artwork. They are
offered here and they are not in the committed set.
COZ CLUB's line is all capitals. THE GLOBAL BUSINESS PLATFORM, per the guideline: the CLUB of Title Case rule is a company rule and COZ CLUB's own tagline was never in it. The supplied letterhead sets it in title case, and that is the deviation, not this.