Yeah, there's a ground bus bar with 2 lugs and at least five yellow-green wires cramped in at the top left of the panel. One of these wires is sheathed with grey plastic, so it should be the incoming ground.
On some circuits there are different fuse sizes on the phases.
Still, nothing beats a panel, at least 50x50 cm, located beneath an old-house ceiling (3m or so) filled with diazed fuses of all sizes (guess 6 to 20 amps) and all black cloth wires.
I couldn't take a really close look because said ceiling was partially broken down and I could hear debris coming down all the time. The floor was already covered at least 20 cm high with debris (all the plaster, lathes, some sub floor from above,...
The only thing I did in this room was to take a short look at this panel, take out a light switch, both with a solid helmet on my head, and then run!
