Inscription

signed, lower right, in black crayon: P. R d ; [by artist ?], across bottom, in black crayon: Mr Robert G. Ingersoll ; across bottom, in graphite: Showing models of torpedoes to the Committee on Appropriations / as 150 ; VERSO OF SECONDARY SUPPORT, upper center, in graphite: A #47 5ºº ; lower left, in graphite: a20986 ; lower right, in graphite: Drawn from life, at Washington, / by Paul Renouard of Paris. ; lower center, in graphite: v/< ; lower right, in graphite: [OX ?][illegible]