Here is a Lee Enfield marked "Sht.22/Mk IV*" with with initials G.R. below Crown on right side of the stock socket. The rifle has a Hiscock-Parker .22 caliber repeating magazine housed in the body of a conventional 303 magazine. This repeater is suitable for both basic marksmanship practice and "rapid fire" on small bore ranges. The rifle has the Crown marking and arrow going forward on the trigger guard. The Parker-Hiscock system had a very short service life, being added to inventory in 1915 and declared obsolete in 1920.