1907/1922 - Italian Kingdom: 10c rose "Leoni" 1906, cancelled with the wavy lines of the machine postmark on blue advertising piece of the company "LIT. BOERO-TORINO" with flower decorative frame, the writing "GUERRA EUROPEA" on top and thousands "1915-1918" downwards, perf. 13+1/4x13. Interesting piece Caffaz certificate
