Mary and Philip AR Groat. 1554-1558. London Tower mint. Lis mintmark.

Lis PHILIP ET MARIA D G REX FR REGINA, crowned bust of Mary left. 
POSVIMVS DEVM ADIVTO NOS, coat of arms on long cross fourchée.

Seaby 2508; North 1973.

Courtesy Ira & Larry Goldberg Auctioneers, Beverly Hills, CA. www.goldbergcoins.com
Sale 31: The Pre-Long Beach Auction May 30 - June 1, 2005, Lot 2121