Victorian officers s/p & gilt glengarry badge C1881.
Cast s/p back star mounted with a gilt overlay surmounted with a pinched style of Victorian crown. Silver St. Andrew to the centre has a separate tang for the cotter pin which is made of blued steel.
I believe this was the first pattern adopted by the 2nd Bn in 1881, see page 8 post no 74 for the Sgts version.