identify service fuse

[chris1970]

can anyone help me identify this service fuse please.
should I replace it with something more suitable ?

 

[chris1970]

I remove them when replacing consumer units also at same time can identify fuse type and size. this was the oldest and worse condition I've done so after some advice.

 

[davesparks]

I remove them when replacing consumer units also at same time can identify fuse type and size. this was the oldest and worse condition I've done so after some advice.

The advice is don't do it!

If it's that old the DNO operatives who are trained in live working and have the correct PPE will generally not touch it until it has been made dead, so why on earth would you start taking it apart?
Do you have arc-flash protective PPE? Have you been trained in live working techniques?
Do you have permission from the DNO to remove their fuse?
Have you familiarised yourself with DNO and MOCOPA publications on what is considered safe to pull the fuse from and what isn't?