Corinphila Auction 284-290 Day 4

1917: 10 pa. on 20 pa. rose and 1916 1 pi. violet & black, used on 1918 cover with original contents to Stamboul (Aug 28), tied by "SAHRA POSTASI / 76" Field Post Office datestamp in black with circular Unit cachet of an Artillery Battery beautifully struck in red at lower left, believed to be from the Damascus area. Small closed opening tear at top of cover but rare.