1931/35, Paraguay, Air Post

Five Sets On The Voyage Of Zeppelin in South America, Overprinted Two Values (yv. 44/45); Five Values (yv. 51/55); Five Values (yv. 63/67); Overprinted “1934” Five Values (yv. 67a/67e); Overprinted “1935” Five Values (yv. 76/80), All New Mounted Mint.