John, That is a tough one as from 1917 both badges were probably worn concurrently, but on different side of the planet.
It is hard to date when the badge for the NZAOC (NZEF) was introduced, but I would assume it was some time in 1916 after the bulk of the NZEF moved from Egypt to Europe.
The records are clearer on when the NZAOD and NZAOC were formed in NZ, but there is no indication as to when the badges were introduced.
For display purposes, for now I would go with the badges worn in NZ (the NZAOD and NZAOC ones with the NZ between the cannonballs).
|