What is a queens head hallmark?

The Queen's Head hallmark is a British hallmark indicating that an item has been assayed in the United Kingdom and meets specific quality standards for precious metals. It features an image of the reigning monarch's head, traditionally the current Queen, which signifies the item's legal status as a hallmark. This mark is part of the broader system of hallmarking in the UK, aimed at protecting consumers and ensuring the authenticity of precious metal products.