Pennyweight.

What does the leopard head hallmark mean?

Short answer

Leopard's head: London Assay Office.

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
Stampleopard head
ClassHallmark symbol

Related stamps

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

All stamps and the search · UK hallmarks and date letters

Frequently asked

What does leopard head mean on jewelry?

Leopard's head: London Assay Office.

Is the leopard head 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.