Never seen D V, but once or twice I remember seeing D IV 100A service fuses in larger apartment buildings in Vienna.
D IV are pretty rare (a work mate even told me they're no longer sold in Austria), so sometimes people do strange things... I think two years ago, on Christmas Day said mate had service work. At 7 AM he got a call: "Apartment building, no apartment has power!" Going there he was already pretty sure they had a problem with thee main service. When he opened the service fuse box he got a real good laugh... some ingenious people had _stolen_ the fuses and screw caps!
Their luck they did it at night when there was no considerable load...
