While working on a photo of my Uncle awhile ago I was trying to find out what the emblem is on his cap but try as I might I never did come across it on the Net. He also had a pin on his collar that said "A.T.S." I always thought he had been in the NZ Merchant Navy during the second world war but his emblem is quite different to the one on his brother's cap which I'm fairly sure is the Merchant Navy emblem.
Unknown Emblem - - - - - NZ Merchant Navy Emblem
If anyone is able to identify it please leave me a comment thanks.