Portrait of a man [1900s-1930s]

Silver gelatin on cellulose nitrate negative with a portrait of a man, there is a man below who has been erased through a masking technique. Negativo de plata gelatina en soporte de nitrato de celulosa con un retrato de un hombre, hay un hombre debajo que ha sido eliminado a través de una técnica de enmascarado. Extent: 1 cellulose nitrate film negative. Size and dimensions of original material: Height: 5.9cm, width: 4.4cm. Author(s)/Creator(s): Elias del Aguila.