#JQ1 1913 1c Parcel Post Postage Due Pair and 2 Singles, All Tied on Great Britain Field Post Postcard to Massachusetts

Vertical pair and two singles, all tied by mute double oval cancels on arriving Great Britain Field 1916 postcard to Somerville, Mass., hexagon "T20" handstamp. Stamps paying the four cents due. The pair with a straight edge at left, the bottom single with top left corner clipped.