<a href="https://en.wikipedia.org/wiki/New_Zealand_Shipping_Company" class="extiw" title="w:New Zealand Shipping Company">New Zealand Shipping Company</a>'s flag, according to the <a rel="nofollow" class="external text" href="https://www.crwflags.com/fotw/flags/gb~hfne.html#nz">source</a>. Too lazy to get the typography precise :P
<a href="//commons.wikimedia.org/wiki/User:%E7%97%9B" title="User:痛">燃灯</a>
<span class="int-own-work" lang="en">Own work</span>