British/New Zealand WW1 16mm Bone Rifle Brigade Button
A single piece, black bone 16mm button to either the WW1 British Rifle Brigade or the New Zealand Rifle Brigade.
New Zealand wore these when stocks of their N.Z.R.B marked ones ran out.
Light wear to front, with good detail.
To back, the shank is firm, with a marker mark visible, but hard to make out.