Waitangi Blues or Whites

Below is an image taken at Waitangi in 1980.  The Guard and Signal Party are all in No 2’s (Blues not Whites).   It is apparent that this happened in 1978 and 79.  Are there any Communicators who were at Waitangi in 1980 who can shed some light on the reason for ordering winter uniform in the middle of summer.  Ships at Waitangi were Canterbury and Otago.

 
Here is a video clip from 1960 which some of you may even feature.  Whites were worn in 1960.  Click HERE to view.  Thank you Tony Bullock for the link.
Whites were again worn in 1970 – Courtesy of the Naval Museum.
1981 Blues was the order of the day.

 
1982 Blues were ordered

1983 they were in Blues again