WW1 British Identity Disk Help

[Fritziii]

Found this today while picking at lunch, I think it's WW1 but not sure, it's made of brass and has alot of stamps, Thoughts? Sorry for the bad pic of the reverse.

Fritz

[Fritziii]

Here's a better shot of the back

[Fritziii]

No thoughts?

Fritz

[paddywhack]

cant find and match the the closest i can find is a william a brasted of the The Queen's Regiment, Labour Corps,on the census i can find a william h brast but thats about all i can find!could this for maybe a factory worker?

[peter monahan]

Not my field but I believe the shape is not right for British military 'identity disks' which were round or eight sided and made of a fibre material, not brass. factory worker might well be a good bet.