WW2 mourning cover posted to London addressed to:

Monsieur Capitaine Arruas

Jewish Chaplain

Fighting French Forces

Grenville House, Dolphine Square

London

Cover has a poor British Field Post Office cancellation, violet censor cachet PASSED BY CENSOR NO. 1203, applied by the British Army and a '2' red cachet to the front. 

On reverse shows the datestamp (part may be 1944) POSTE AUX ARMESS F.F.C.  B.C.M 2 MR. 

Capitaine Arruas was appointed as Jewish Chaplain to the Free French by De Gaulle in September 1941 

Conditions as shown:

ID F 24613