Battle of Britain RARE D J Anderson 29f sqn Blenheims multi signed RAF cover

4 BOB vets signed cover. RAF 40th anniv of Battle of Britain 1940-1980 RAF Coltishall 20 sept 80 signed JJ Booth, Alan W Gear 32 sqn and Donald John Anderson 29(F) Blenheim WW2 BoB FDC. He then joined 29 Squadron at Digby on 6th July.