10 Australes, Argentina banknote from 1989 under the microscope

10 Australes, Argentina banknote from 1989 under the microscope
Santiago Rafael Luis Manuel José María Derqui Rodríguez (Córdoba June 21, 1809 - Corrientes November 5, 1867) was president of Argentina from March 5, 1860 to November 5, 1861. He was featured on the 10 australes note, which is now obsolete.
Portrait of President Santiago Derqui
Liberty (Progreso) with torch and shield seated at left center