Pennyweight.

What does the crown hallmark mean?

Short answer

Crown: on British gold it accompanies the carat figure (18 from 1798, 22 from 1844); on silver before 1975 it is the Sheffield town mark.

A mark is a statement, not proof: it can be forged or struck on a plated piece. An assay confirms it (touchstone and acids, or X-ray fluorescence).

The stamp in detail

ItemWhat the tables say
Stampcrown
ClassHallmark symbol

Related stamps

Also in this group: lion passant, Britannia, leopard head, anchor, rose, castle, orb, sovereign head.

All stamps and the search · UK hallmarks and date letters

Frequently asked

What does crown mean on jewelry?

Crown: on British gold it accompanies the carat figure (18 from 1798, 22 from 1844); on silver before 1975 it is the Sheffield town mark.

Is the crown mark proof of the metal?

A mark is a statement, not proof: it can be forged or struck on a plated piece. An assay confirms it (touchstone and acids, or X-ray fluorescence).

Sources

All sources are listed with the method on the sources page.