(The indicated First Day Covers are preliminary samples, the originals may differ slightly from the picture).
Single – a total of 12 envelopes, each one with one of the values issued, appropriately cancelled
M.I. block of 4 – a total of three envelopes, each one with a se-tenant block of four with M.I., appropriately cancelled
Combo – a total of three envelopes, each one with a se-tenant block of four without M.I., appropriately cancelled
Jumbo – a total of three jumbo size covers, each one with one of the mini-sheets issued, appropriately cancelled
Quatro – one jumbo size cover with the three different se-tenant blocks of four, appropriately cancelled New York, Geneva and Vienna, plus one from Romanian post
Special First Day Cancellations
On 11 May 2017, first day cancellations for the Endangered Species stamps will be available at United Nations Headquarters in New York; the Palais des Nations, Geneva; and the Vienna International Centre. The cancellations are illustrated below: