WW1 cover from France with 10c cancelled YVETOT 28-4-15 and addressed home to London and a Mrs Shack Sommer. 

Top left addressed from:

Nurse F S Sommer

Hospital de l'Alliance

YVETOT Seine Infre

Postage was underpaid (Foreign rate would have been 30c), French T (taxed) cachet. Charged at a single decency on arrival in England with the 3d F.B.A cachet implying the fee due, collected LONDON 1 MY 15. 

(Nurse Sommer sister of George Schack-Sommer, died in action Galicia June 1915 serving as a 2Lt with the Artirsky Hussars Russian Army. (He had petitioned the Tsar for permission to join the Russian Army – Was awarded St Georges cross).

Condition as show: Old, light fold and creasing

ID: GB WW1 42134