This soldier is wearing his frock coat with waist belt. and bowie knife.
CDV – Unmounted, Soldier in Frock Coat, Waist Belt with Bowie Knife- Civil War Era, A bowie knife is tucked into his waist belt. Wearing a federal frock style coat with some interesting cuff braid, and three numerals on the front of the crown on forage cap. Found in New York state.