Source: Banque de France, 10 (Dix) Francs, 1943
This is an example of a light and shade watermark. It consists of a head in profile wearing a metal helmet.
Additional Book Information
Banque de France, 10 (Dix) Francs, #07840, issued in 1943 under the Vichy regime. The original banknote measures 3" x 4-1/2" (75mm x 115mm).