This product is a mint never hinged (MNH) block of Nauru ship stamps issued in 2005 to commemorate the 200th anniversary of Lord Nelson. 
The stamps were issued 2005 and were part of the decimal currency. The stamps were manufactured in Nauru, which was a British colony until 1968. 
The stamps feature multi-color designs and are of extremely fine/superb grade. The product is uncertified and has regional status as a British colony.