UNIDENTIFIED MANUFACTURER - Panel Fuse Holder
Country of origin is unknown
Part # 008
Manufacturer is unknown, searching the logo impressed into the body using Google images revealed nothing that made sense (as usual!)

Suits 3AG size fuse (a 2A fast blo fuse is included)
Yellow square face front insert which is clearly marked FUSE - no need to go hunting around for that fuse socket on the equipment any longer!
Push the small topside tab and the White front section pops forward (under an internal compression spring pressure) for fuse changing
Current rating: up to 6A
Voltage rating: up to 250V
Includes the original Black nylon washer and metal nut.
DIMENSIONS:
Length (total) 42.5mm
Front section (which protrudes from the panel) 5.75mm
Front section size 16.6mm x 16.6mm
Barrel diameter 13.5mm OD
Solder terminals
CONDITION:
USED (Ex broadcast equipment)
Clean
Individually stored in a clear plastic packets