badge, collar, New Zealand, New Zealand Post and Telegraph Service (New Zealand Engineers)
Bright brass, a King's crown atop a downward scroll on which CELERITAS (Swiftly), below the scroll a winged right foot, the wings spread horizontally and linked to the scroll ends above, below the foot a downward scroll, ends linked to the lower edges of the wings, on which N.Z. P. & T.C. Two fixings removed from reverse.
Note that this item displays a different foot, possibly indicating that the collar badges were worn as facing pairs.