1916 censored cover to Paris, endorsed ‘Entomological Correspondence Only’ bearing a ½d and a pair of 1d’s, the first is type II, DIE II, the second Die 1( SG 21a and 21) The stamps have been cancelled T P O CAIRNS RLY DOWN 20 MR 16. A red circular Passed Censor Brisbane 23 MR 16 is on the front of the cover, on the back is a Paris 5.5.16 arrival cancel. The Die II 1d is exceptionally rare on cover, particularly in pair with a Die 1. S.G. catalogue is £3000 off cover ! An exhibition item.