They appear to be the same as the ones used on Moke Californians with sunraysia wheels, but there are some interesting comments on the MokeWerx website about reproductions and later UK wheel nuts that apparently have the same 60° angle but different seat areas.
https://www.moke.com.au/in-the-garage/135-wheels-and-tyres/395-sunraysia-wheel-nutsNow I'm wondering about the set of supposedly NOS sunraysia ones I have...
Tim
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1951 Morris Commercial J Type Van
1955 BSA C11G
1961 Morris Mini Traveller
1969 Triumph TR6R
1977 Leyland Moke Californian