Meriden Britannia Company 1943 marking

5" wide by 5" tall including handle. Has nice flower and bird motif and a braid pattern on top of handle. Not sure what it's meant to be - a basket or pot or just a trinket box? It may have included a lid but it's missing now. 

Stamped Meriden B. Company 1943 on bottom

Also seems to have an "R"  or "Pr..." engraving on the top rim. Not sure if part of a word or what. 

Silver plated? Century?

Thanks!