Brown cotton twill construction, with one Signal Corps pinback button emblem on the standing collar, a gold ribbon Overseas Chevron on the left cuff, a red-on-green embroidered private chevron on the sleeve, and a blue and white on green embroidered patch featuring a French Caquot pattern kite balloon. The Caquot was used by American naval and land forces in World War One, the former using them for anti-submarine work and the latter for reconnaissance and artillery spotting. Operating these balloons on land was a major Signal Corps activity, alongside their early work on heavier-than-air flight, and 17 of them were deployed to the Western Front. No maker's/tailor's tags are present, though the collar is hand-signed "MELISA-/NDE/MANNING/8a4/*" on the interior; Manning has not been identified, and the exact significance of the marking is unknown. Fine overall, with minor stains and wear. Provenance: The Putnam Green/Sycamore Collection.