https://data.ldmax.nl/ark:/74905/cb9c63e7ac4e356ddf5183f462745322
Afkomstig uit dataset Daguerreobase
"Three quarter length portrait of middle aged seated man with his head turned right, wearing a hat and holding on his lap a little boy (maybe Giuseppe Vigoni 1846-1914). The image is attributed to Antonio de Kramer, the founder together with Heinrich Mylius of the S.I.A.M. in Milan (Società d'Incoraggiamento di Arti e Mestieri) in 1838 where de Kramer was teaching chemistry. Bibl. Bonetti, Maffioli, L'Italia d'argento, 2003, p. 189. On the plate hallmark M Double Dotted Diamond Inscribed (French origin) and on the other corner the number 40."