Arts & Crafts Brass & Copper Jewellery Box, Casket

This box was my grandmas jewellery box and was given to me as a little girl when she passed away. I kept my treasures in it and more recently my son kept his special lego figures in it. we were clearing out his toys and i decided to give it a clean. Its come up so nicely and its got me wondering how old it is and does anyone know who made it? There is a stamp on the bottom but ive had no luck finding out anything else. Id be grateful for any information anyone could give me. 

Many thanks. 

Beth

Fair