Livery button?

Denny45 · Apr 5, 2017

Is this a livery button? Was it used for police, military, railroad or something else?
Back says J COMPTON & SONS LONDON

Outta Place · Apr 5, 2017

Says "Invalid Link"?

Iron Patch · Apr 6, 2017

Not livery, and railway would be a good possibility.

Denny45 · Apr 6, 2017

Iron Patch said:
Not livery, and railway would be a good possibility.

Yes, it looks like a railway button because of the letter R for railway and S for south. But what do the other letter(s) represent?

Denny45 · Apr 6, 2017

Iron Patch said:
Not livery, and railway would be a good possibility.

Yes, it looks like a railway button because of the letter R for railway and S for south. But what does the other letter(s) represent?