WW1 Royal Engineers Postal Service APO 3 to APO A5 Registered Letter 1917
WW1 KGV Registered Letter March 1917 cancelled with the datestamp Army Post Office 3 and registered through the same office, the stationary APO at Boulogne, addressed to:
Sapper W. K Scott
With to the reverse the FPO A5 datestamp, located at Toutencourt near Doullens.
Condition as shown:
ID: GB WW1 29269