Quarter Plate Ambrotype Portrait of a New York State

Quarter plate ambrotype full standing portrait of two uniformed New York State Militiamen, including an officer wearing a two-piece buckle and a militia-style sword, and a private holding a flintlock musket. Housed in pressed paper case fully separated at spine.
Condition Report: Case fully separated at spine, with finish wear to edges and raised surfaces. Image with crackling and flaking to emulsion (heavy in certain areas), fingerprint marks to upper right edge, and some spotting and darkening throughout (heaviest darkening to edges).