Natural, without preservation and, although not formally introduced into circulation during the IIRP, with the characteristics of being in circulation.
Two theories are known from the literature about the appearance of this denomination in circulation. One speaks of the use of these banknotes for the payment of wages and the September Campaign of 1939. The other about the informal introduction into circulation, among the unaware population, pieces lost from transport, and this fact is confirmed by several press bills of the era.
An attractive, interesting and rare item.