New Zealand - SG 671a, in block of four with three
regular 671
Issued 1 April 1946
671a is the lower right stamp in the block and
has a clear line defining the rear of the
sea-plane's rudder.
This is a marginal block with the upper selvage.
The selvage has been folded back and the perforation has
separated at the left. The block of stamps is, however,
undamaged.