This U.K. Atomic Weapons Energy Fire Brigade officers cap badge is the 2nd pattern cap badge in force till the name change to British Nuclear Fuels Ltd in 1971! Again in excellent condition with the establishments emblem surrounded by a laurel wreath denoting an officers cap badge. 
The Atomic Weapons Research Establishment which was established on 1st April 1950 at R.A.F Aldermarston in the county of Royal Berkshire, equidistant from Newbury, Reading & Basingstoke in Hampshire! 
The Royal Air Force station & airfield at Aldermarston was home to both the R.A.F & U.S Army Air Force during WW2 1939 to 1945, the later basing its 8th & 9th Army Air Force at the base & it being designated U.S.A.A.F Station 467! 
It has always been a British Government & M.O.D establishment & on the changeover in 1954 the name lasted until it was changed to British Nuclear Fuels in 1971. Still known as The AWE Fire Brigade at Aldermarston but British Nuclear Fuels Limited (BNFL for short) has its own fire brigade based at other establishments & has a totally different cap badge! 
The badge has no enamel chips, excellent patina & the 2 cap fixing lugs to the rear, manufactured by The London Badge & Button Company, this cap badge looks in unissued condition & again a getting harder to obtain cap badge pre 1971!
An excellent investment for a fire brigade cap badge collector!