Spanish military aviator (1886–1975). Rare Aliens Order, 1919 card, one page, both sides, 6 x 4, stamp dated on the reverse October 8, 1922. Card is filled out in type, including his full name “H. R. H. The Infante Alfonso of Spain,” age “36,” occupation “Army,” and address in the UK “Homewood, Esher, Surrey.” Signed at the bottom in black fountain pen “Alfonso de Orleans y Borbon.” In fine condition, with expected light corner wear from handling, light crease to upper right corner, and some show-through from two printed black lines on reverse. RRAuction COA.