One dot between groups
No two dots touch. Lines never stand alone without a dot.
These conventions apply to counting marks, not to every form in the archive.

Groups of vertical lines, separated by a single dot. From the simplest form, a rhythm can extend without end.
No two dots touch. Lines never stand alone without a dot.
A dot may begin the sequence, or the first group of lines may lead.
An arc may appear above or below the marks, or be absent altogether.
The independent ||·|| without an arc is Kalman Pool’s signature, 11.11. It is shown here as a record and is always excluded from generation.

11.11 · Photographic record. Further signature examples are under review.
Related forms in the archive ↗︎