This detailed : Freeport, N.Y. Southern New York Volunteer Firemens Ass’n 22^nd Annual Convention June 12-14 1917 Woodcleft Canal (center image) medal/fob is about 2 3/8 by 1 1/2 inches and weighs .9 oz. This medal/fob (nickel?) is slightly concave and is shaped like a oyster shell (? to me). Top has hole for attachment to convention ribbon or watch fob (?). Backside has:The Whitehead & Hoag Co. Newark NJ. Front side has minor wear; back side has scuffing. Any questions please ask. Thank you OB