In modern heraldry, a royal cypher is a monogram or monogram-like device of a country's reigning sovereign, … 展开

The use of a royal cypher in the Commonwealth realms originated in the United Kingdom, where the public use of the royal initials dates at least from the early Tudor period, and was simply the initial of the sove… 展开

British royal cyphers are still visible on several public buildings and old post boxes in the Republic of Ireland.
Other royal houses have also made use of royal or imperial cyphers; Ottoman sultans had a calligraphi… 展开