Interior of the Rebel Fort Mahone, called by the soldiers "Fort Damnation", showing gabions, "chevaux de frise", &c

View from the parapet of the rebel works in front of Petersburgh (i.e. Petersburg), Va., showing gabions, bombproofs, "chevaux de frise" and rifle pits in the distance

Chevaux-de-Frise in front of the Rebel Works at Petersburgh (i.e. Petersburg), Va.

Ditch and "Cheavaux de frise" in front of the Union Fort Sedgwick, called by the Rebel soldiers "Fort Hell"

Ditch and "Cheavaux de Frise" in front of the Union Fort Sedgwick, called by the rebel soldiers "Fort Hell"

View along the rebel line just east of the Western & Atlantic R.R., Potter's house in the middle ground, Atlanta, Ga., Nov. 1864

View of large rebel fort east of W. & A. R.R. Potter's House in the right background, Atlanta, Ga., Nov. 1864

View of large rebel fort east of W. & A. R.R. Potter's House in right background, Atlanta, Ga., Nov. 1864

Fort McAllister, Ga. soon after it had been carried(?) by assault, Dec., 1864 from western glacis, showing ditch of the land front