Details
LB, Italy
Four coloured postcards, titled L'Obbiettivo, La Negativa, La Positiva, La Camera Obscura, each with undivided back and credited Giov. Mengoll - Bologna. (4)
Four coloured postcards, titled L'Obbiettivo, La Negativa, La Positiva, La Camera Obscura, each with undivided back and credited Giov. Mengoll - Bologna. (4)
Further details
See colour plate 1