Irish silver marks represent a unique hallmarking tradition distinct from English systems, with characteristic symbols and dating methods specific to Ireland.
Ireland's most distinctive mark is the crowned harp, symbolizing the country and appearing on silver assayed in Dublin. This mark has been used for centuries.
The Hibernia figure (representing Ireland) was used as a duty mark from 1730-1890, indicating that tax had been paid on the silver item.
Irish date letters follow different cycles than English ones, requiring specialized knowledge to date Irish pieces accurately.