The other light that FontanaArte have introduced to celebrate their 80th anniversary (see the post on the Ashanghai by Max Ingrand here) is Mano by Pietro Chiesa -- a leading exponent of Italian art deco..
Like Max Ingrand, he had his own studio and glass was his preferred material. In 1933, the Bottega di Pietro Chiesa was merged with the company recently founded by Gio Ponti and Luigi Fontana to create FontanaArte. They all wanted to get the finest designed objects into people's homes -- still the intention of FontanaArte (and of Cameron Peters Fine Lighting) today.
Mano was designed in 1932, before the new company had come into being, as can be seen below:
It was a one-off, commissioned for the study of Italian author Ezio d'Errico. The interior decoration was carried out by the Torinese architect Carlo Mollino, working with Pietro Chiesa.
You can see Mano in the study in this picture that was published in 1940 in Domus no. 145:
Mano is Ø36cm H70cm and takes one E27 lamp. The white hand and black base are both made from white marble powder and resin.
The hand looks different, depending upon the angle from which it is viewed.