Postally unused. French title on front reads: "Great week of Aviation - Niel in Nieuport." Appears to be Niel in the cockpit with two colleagues at the propeller. Inset portrait of Niel above aircraft. Very good condition. (2)
Postally unused. French title on front reads: "Great week of Aviation - Niel in Nieuport." Appears to be Niel in the cockpit with two colleagues at the propeller. Inset portrait of Niel above aircraft. Very good condition. (2)
