Description
“1944 (Jul 28) Plain envelope a little roughly opened along top to Ministry of Labour & National Service, London EC2 bearing GB 2½d tied London S.W. 1 Post Early iin the Day slogan & with violet circular C.F.L.N. /Delegation de Londres /Direction /Secretariat /Services with manuscript 4277 inserted…………………………………………………………………………….
C.F.L. N. was the French Committee of National Liberation Provisional Government of Free France set up 3 June 1943 see https://en.wikipedia.org/wiki/French_Committee_of_National_Liberation