Large vintage Georges Pelletier ceramic table lamp 1970s

Large lamp base made by the ceramist Georges Pelletier in the 60-70s. The base is perforated with more or less large circles around its entire circumference. A socket is built into it, and once lit, the light projects these circular shapes onto the surrounding surfaces. Its lampshade is custom-made here in the workshop. It's not signed. Two B22 shell casings. Unfortunately the base is cracked, see detail pictures.