WW1 R.E. Signals 13 Corps HQ Western Front Registered Letter FPO H18 APO S.17 and FPO AD1
WW1 KGV Registered Letter August 1918 sent through the stationary Army Post Office S17 located at Etaples and addressed to:
Spr J Wm Sparland
13 Corps Headqts
Censored, cover has further part FPO H.18, Army Post Office S.17 to reverse and Field Post Office AD1.
Condition as shown: Previously folded through registration line