Signed on Verso CDV of Union Soldier Peter Johnson, 4th Illinois Cavalry

Signed on Verso CDV of Union Soldier Peter Johnson, 4th Illinois Cavalry – Bust View
This is a clear bust-view carte de visite of Peter Johnson of Company M, 4th Illinois Cavalry. The image shows a sharp portrait of the young soldier in uniform. The CDV is signed on the reverse in period ink.
Service Summary:
Residence: Camden, Illinois
Occupation: Tinner
Enlisted September 5, 1861, at Port Byron, Illinois, at age 21 as a Private
Mustered into Company M, 4th Illinois Cavalry on September 26, 1861
Re-enlisted February 17, 1864
Intra-regimental transfer: Company M to Company B (June 14, 1865)
Transferred to Company I, 12th Illinois Cavalry on June 23, 1865, at New Orleans, Louisiana
Mustered out May 29, 1866, at Houston, Texas
At enlistment, Johnson was described as 5'6" tall with a dark complexion, hazel eyes, and brown hair.
This is a nicely identified, signed CDV of a long-serving Western Theater cavalryman who served nearly five full years in the Union army. There is a little bit missing on the bottom right corner but still an incredible piece of history.