I have a silver brooch with black stone in the centre. It's signed RAR 925 with some pictorial silver marks. Can anyone help me identify these marks? I searched Scandinavian and American marks as it is 925 but wasn't able to find anything similar.
Many thanks.
![Image](https://i.postimg.cc/nXpCJn3r/brooch-silver-marks-0203.jpg)
![Image](https://i.postimg.cc/Wd8tpxyn/brooch-silver-marks-0202.jpg)
![Image](https://i.postimg.cc/0bpbFzdh/brooch-silver-marks-0201.jpg)