id help on this art & craft brooch? stamped made in england no 971 0R 941

This lot is a well made item and is quite heavy, any clue on the maker or who designed this brooch?

Looks more like celtic/viking revival style. If it's heavy, the frame and clasp could be
silver plate. A small scrape with a blade might show that.
The centre looks to be hand-beaten silver, so the numbers could be 975/925.
Can I see hallmarks next to the logo or is it an optical illusion?

Will try and get a better picture of the mark on it when the day is bright. But i doubt is silver

A 9xx mark pretty well says the centre part of it is silver.

that is the best picture i can get.

No, I've copied and enlarged it but it's really impossible without using a glass.
I still think the frame and sprung clasp will be silver plated, hence the
weight, silver would be too soft and bend.
The centrepiece, well just not sure, but I would bet it is silver.
You might need to show it to a jeweller to verify it.

:) Thanks denbydump you've been very helpful. is not silver i was trying to see if i can come across this maker.. is silver plated on brass or bronze one of the two... maybe is mass produce earns why is not mark with maker's initial's, i do know some art deco brooches associated with good maker's can be very collectible.