The author publishes a painting by Augusto Tominz with Leonardo painting the Gioconda, exhibited in Triest
in 1846. This important artwork, property of a family from Trieste, has been nowhere to be found until now.
A similar drawing by the same artist is in Civici Musei di Storia ed Arte of Trieste. This drawing was appreciated
as a preparatory work of the painting, but the discovery of this artwork has allowed us to confirm some
differences beetwen the drawing and the painting. The author considers the possibility of the existence of two
different paintings, and only one is known or, in an alternative perspective, the drawing in the Museum was
another version of this lucky composition that the artist never painted. Furthermore, archive research better
showed the period of his training in the Venetian Academy from 1841 to 1842.
