Kind of sounds attractive, doesn't it? As you can tell from the prices, address and typography, we are in the 1930s. The autogiro (patented name of the Cierva company, otherwise they're autogyros) was an attempt to build a 'safe' aircraft, pioneered in the inter war period by Spaniard Juan de la Cierva. Many of the principles his team discovered went on to be used in the development of the helicopter, while tragically he was killed in the 1936 crash of an airliner - exactly the sort of accident he was trying to overcome with the autogiro.
As part of the Spanish aristocracy, one of his less savoury achievements was helping to arrange the return of a certain little general to Spain to start a war.