This is a fantastic New Zealand Official OPSO Overprint in Violet on the 1892 1d Rose, or SG 07 Perf 11.  This is from the official reprints of 1905!  It is valued at L800 in the Stanley Gibbons Catalogue when Used.

This lot is over $100 USD so I will be shipping it using Priority Mail in states and Registered Mail overseas.  This is to ensure that it reaches you in a safe and timely manner.