Edward VI, Sovereign, 1547-1553. Third period of 1550-53. Mintmark, tun. 

Half-length figure of king right, crowned and holding sword and orb.
Crowned shield with supporters. 

S.2450; Fr-186. 

Courtesy Ira & Larry Goldberg Auctioneers, Beverly Hills, CA. www.goldbergcoins.com
Sale 31: The Pre-Long Beach Auction May 30 - June 1, 2005, Lot 2114