Form A.M.S5 Issued and authorised when a serving enlisted man is promoted in the NCO ranks. These two registered to W. J. Tyrrell No. 172769 of the 39th Battalion in Hawthorn, Vic.1. Corporal's Certificate. Single sheet of paper, faded white paper, black writing, dated 20th Oct 1925. promotion from Private to Corporal. 2. Sergeant's Certificate, single sheet of paper, black writing dated 23 February 1926 promoting from Corporal to Sergeant. Both headed "Australian Military Forces" and Commonwealth Emblem.Signed by Adjutant and Commanding Officer, 39th Battalion. Scribble on back "VX5760 Cath O'Day"promotion certificates, amf, 39th battalion, w.j tyrell