Irish. Royal South Down Militia Victorian Officer’s coatee button

Irish. Royal South Down Militia Victorian Officer’s silvered closed back coatee button by Foley & Crocker, College Green, Dublin. Resting in shamrock wreath, a crowned title strap ; ‘112’ centrally. Complete with shank. Approx 22 mm
Raised at Hillsborough 1797. Became 5th Bn. Royal Irish Rifles on Friday 1st July, 1881.