Great photo's,
These are DIII type bottle fuses 35, 50 or 63 Ampères on the burn out part.
Could have been the mains fuse bypassed, although it may have also space for a kWh meter as well.
By carefully looking at the meter readings of the kWh meter, the first reading is 12419 kWh, the second reading 12420 kWh. That looks a different circuit than the one shorted out by the srewdriver.
Russian meters are wired up the same as most European meters.
Phase, Phase, Neutral, Neutral.
The panel on the left with no meter has been completely bypassed. (where a meter used to be).
Pretty shonky wiring on these other pictures.
The rotary switch may even be a 3 phase arrangement.
