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Assay Assay
The Hallmark

The Hallmark · Anatomy

Anatomy of the Hallmark

The Hallmark is four marks, each with its own rules of construction: the Practitioner’s Mark, the Standard Mark, the Assayer’s cipher and the Date Letter. This page reads each in turn, and the rules by which the four are composed. Every mark shown is a specimen.

The Practitioner’s Mark

A personal mark from a closed library

In design · awaiting ratification

The Practitioner’s Mark is one or two serif initials reversed out of a single ink figure drawn from a closed library of shapes. A Practitioner chooses one shape when they register; the closed set keeps marks distinct and legible at small sizes.

Two further shapes are never issued to a Practitioner: the circle is reserved for the Date Letter and the touchstone slate for the Assayer. The shape count and numbering are proposed and not yet ratified. The initials shown are illustrative.

The Standard Mark

Standard Mark — IDEA, version III IDEA · III

An oval naming the Standard and its version. Inside the mark the version keeps its formal Roman numeral (“IDEA · III”); everywhere else it reads IDEA v3. The version is part of the mark because a Hallmark’s meaning is fixed at the date it was issued: an engagement assessed under IDEA v3 carries that version permanently, whatever later versions say.

The Assayer cipher

Assayer Mark — cipher SPX SPX

The touchstone slate, crossed by a gilt streak, carrying the cipher of the independent Assayer that assessed the work. The same cipher forms the final segment of the engagement’s identifier — in the specimen, AF-0000-0000-SPX — so the record names who assessed it. The identifier format and the cipher scheme are awaiting sign-off.

The Date Letter cycle

One letter per year, derived — never entered

Proposed · awaiting ratification

The Date Letter is a single letter in a cartouche whose shape and case fix the cycle, while the letter fixes the year. Cycle 1 is proposed to run from 2026 to 2045 in a round cartouche, in italic lower case. The letter j is omitted, to avoid confusion with i, so twenty years map to twenty letters. The letter is derived from the date of issue, never entered by hand.

Later cycles are proposed to advance one shape and one style step: Cycle 2 (2046–2065) a cushion cartouche in roman capitals; Cycle 3 (2066–2085) an arch-top cartouche in small capitals.

How the four are composed

  1. 1

    Fixed sequence: Practitioner, Standard, Assayer, Date Letter, left to right, always in that order.

  2. 2

    A single gilt midline dot separates each mark from the next — never a slash, a comma, or a space alone.

  3. 3

    The marks are optically centred on their visual centre, not on the bounding box, so that figures of different heights sit on one line.

  4. 4

    Minimum height 16px on screen. Below it the initials may drop, but the cartouche shapes never do.

Inspect the specimen record Open the Register