Arts & Crafts Copper Chalice or Bowl

This is an exceptional quality arts and crafts beaten copper piece. It has a chased decoration around the rim. Incredible central motif /decoration showing incredible skill. One cannot underestimate the quality. Sir Gordon Russell. Numbered underneath showing the model number which appears to be 260 with a line through the three digits. Also carefully scraped into the base is the number 301 which is hard to see. Probably a complete one off design. The design owes an influence to the earlier works of C R Ashbee & The Guild of Handicraft. Cotswold School rather then earlier Arts & Crafts. Further research into the archives held on Gordon Russell would elucidate a firmer attribution.