Los 2207
1902, single page with a unique proof of Sperati's "400 REIS" overprint surcharge that may have been used for finished forgeries of several colonies, first reported in Sperati II, only Angola has been seen as a finished reproduction but others could exist from Cape Verde, Mozambique, Portuguese Congo, Portuguese Guinea, St. Thomas and Prince, or Zambesia, ex Sperati archives and Carl Walske
