Hello,   not a horse stamp   I could not find the one I wanted to show you... but I found this......   issued in 1960......   SG 798..   what a magnificent place it must be.

have a look at http://www.doc.govt.nz/templates/PlaceProfile.aspx?id=38487

Enjoy your stamps, without them we would not have me telling you this I think.

FYI.  I may not write for a week..I'll try, but might not have time or access.  I fly out of Sydney on Wednesday morning, return Saturday, so not too far...maybe   .   Where I am going the temperature is minus 5...frantically searching for a coat.... I hope to buy some stamps / covers while I am there... if I succeed you could get one from me  ............   where am I going..  ..."most of its cityscape is modern. Overshadowed by high-rises and 12-lane freeways, it yet retains a hidden history of centuries-old temples, palaces, pagodas and pleasure gardens"......     go on,  have a guess 

best wishes....Michael