Signature: Signed, lower right, in graphite: "A Calame f"
Inscription: Inscribed above signature, lower right corner, in graphite: "606" and larger, below signature: "606" [underlined]; in another hand, lower left corner: "M" (?)
Verso, lower right, inscribed with Colnaghi stock number, in graphite: "D31316"
Marking: Lower right corner, stamped with artist's studio mark, in red ink: "VENTE CALAME" (Lugt Suppl. 426a)