Exceptional 2.5 x 4 carte-de-visite bust portrait of Beauregard, crisply signed at the bottom of the image in black ink, "G. T. Beauregard, 1866." Published by S. Anderson of New Orleans. In fine condition, with clipped upper corner tips. An exceptionally bold signature of the ex-Confederate on a desirable format, signed shortly after the conclusion of the Civil War. Encapsulated in a PSA/DNA authentication holder.