A sixth plate tintype presents a seated Union soldier in three-quarter view, captured most likely during the Civil War era of the 1860s. The image is housed in a gilt mat with an ornate pressed-brass surround and retained in a leather case embossed with a central bird-and-foliage cartouche framed by scrollwork borders. No photographer's imprint is visible on the case or plate.

The soldier wears a nine-button dark frock coat with a standing collar, consistent with U.S. Army enlisted dress of the period. He holds his forage cap in his lap with both hands, and a detail image of the cap clearly shows a brass company letter "G" affixed to the crown, identifying him as a member of Company G. His expression is direct and composed, his dark hair short and neatly combed.

Company G designations were common across Union volunteer infantry, cavalry, and artillery regiments throughout the Civil War, and the soldier's frock coat and forage cap are consistent with standard enlisted issue of 1861 to 1865. The "G" badge on the cap is among the more legible regimental details to survive on a tintype portrait of this scale.

The reverse of the plate is unmarked, and no inscription or notation appears on the case interior or exterior.