British Army S6 Gas Mask Respirator Avon, with correct haversack, Blot-Bang-Rub (sealed) and correct spare fitter,Mask dated 83. (The Troubles, N.I,) ThisService Respirator No. 6 (S6), also known as Respirator NBC S6 No. 1 Mark 1 was a protective gas mask issued to the British Army.
