Lot 10324 – 1878, 300r green and orange, probably the earliest usage known on cover

1878, 300r green and orange, single franking on registered cover front with upper back flap (opened for display) from Parahyba do Sul to Rio de Janeiro dispatched on 23 October 1878; to our knowledge, the earliest « Auriverde » usage on cover recorded; single in different shade on registered entire letter from Ceará to Pernambuco dated 13.11.1878 (e very early usage).