DESIGNER UNKNOWN ÉCOLE SUPÉRIEURE D'AÉRONAUTIQUE. Circa 1910. 27 1/2x19 1/2 inches, 64x49 1/2 cm. A. Bovard-Giddey, Lausanne. Condition B+: repaired tears and restoration at edges and along vertical and horizontal folds; small replaced losses in lower right corner; repaired pin holes at edges; NY State Library ink stamp in upper right corner, dated 1916 and puncture stamp in lower right corner.