The inscription on the back of the case reads:
"This Daguerreotype was taken by Southworth Aug. 1845 it is a copy of Captain Jonathan Walker's hand as branded by the U.S. Marshall of the Dist. of Florida for having helped 7 men to obtain 'Life Liberty, and Happiness.'
SS Slave Saviour Northern Dist.
SS Slave Stealer Southern Dist."
This daguerreotype was also used as the basis for a wood engraving.