Great Britain. Henry VI (first reign 1422-1461). Silver groat. (3.80 g). (1427-30). Calais mint. 

Facing, crowned bust.
Legend with rosette and mascle. 

Spink 1859. North 1446.

Courtesy Ira & Larry Goldberg Auctioneers, Beverly Hills, CA. www.goldbergcoins.com
Sale 31: The Pre-Long Beach Auction May 30 - June 1, 2005