Button, Departmental Commissioned and Warrant Officers of Corps and Departments other than those of the Indian Army Service Corps, Indian Army Ordnance Corps and Army Remount Department, 1901-1910.  Tudor crown over Royal and Imperial cypher 'ERI'.  No rim, brass.  Reverse marked Wm Twigg & Co Birmingham.  Button from a card entitled, ‘HEIC GENERAL PATTERNS, STAFF & GENERAL BUTTONS’, nd.
From a collection of buttons associated with Indian Corps and Departments.
From the collection of Maj H G Parkyn.

Button, Departmental Commissioned and Warrant Officers of Corps and Departments other than those of the Indian Army Service Corps, Indian Army Ordnance Corps and Army Remount Department, 1901-1910