How to Identify the British Groat

Start with the portrait. The George III groat shows the king in profile facing right, wearing a laurel wreath, ringed by a Latin obverse legend. This right-facing laureate bust distinguishes George III pieces from the differently posed portraits of earlier and later monarchs.

Turn to the reverse to confirm the denomination. A groat's reverse carries a crowned shield with the value that marks it as a fourpence, together with the 1792 date. Because the penny, twopence, threepence and fourpence of this era share a near-identical style, the reverse device—not the obverse portrait—is what tells the four denominations apart. Check it carefully before concluding you have a groat rather than a threepence.

Use size and metal as a cross-check. The groat is silver, small and thin—clearly narrower and lighter than a sixpence or shilling. Weigh and measure it against published specifications for a George III fourpence; a coin that is too heavy, too large, or non-magnetic-but-base-colored is a red flag.

Be alert to look-alikes and alterations. Toy or replica "model" coins, later Britannia groats of William IV and Victoria (which use different portraits and reverses), and cleaned or tooled examples all circulate among the genuine pieces. On a coin this small, harsh cleaning, bending or a filed edge can be easy to miss.

When value hinges on authenticity, seek a second opinion. Compare against trusted reference images of the George III 1792 fourpence, and for higher-grade or costly examples consider third-party grading. Never judge by the portrait alone—confirm denomination, date and metal together.