Marshall fuse value?

[drewl]

I have a Silver Jubilee 25th anniversary Marshall which uses 2 pc board mounted fuses, one for each heater leg.
Somebody replaced one with a 3AG size.
Anyone know the amp value? Can't really see it on the fuses.
I want to replace the wrong one with a correct pc mount one.
They're not even shown on the schematics.

Thanks.
Andrew.

[drewl]

!0A if anyone is interested.