Unknown collar badges

[badgecollector]

hi all
I have these collars. a pair of eagles, a single shark and I've seen a similar won with a palm tree. the palm tree in the shape of the palm of the Pacific Islands Badge
they are anodised aluminium and made by Swan & Hudson.
they are not Australian army, but I have a feeling it could be Pacific Island Rgt or Papua New Guinea.
welcome all your thoughts
bc

[badgecollector]

hi all
just trying again.
any thoughts
bc