Canada. A Second War Princess Louise Dragoon Guards Ladies Sweetheart Ring certificate_of_authenticity inscribed on the reverse is

inscribed on the reverse is the manufacturer Foerster & Barth

Accompanied by a wooden matchbox

the reverse centre presents the maker mark for L

including two Pfalz DIII and a Fokker DrI

scalloped trim encompassing the base

Canada. A Second War Princess Louise Dragoon Guards Ladies Sweetheart Ring certificate_of_authenticity inscribed on the reverse isTwo piece construction, 13 mm (w) x 15 mm (h) Princess Louise Dragoon Guards insignia in silver with dark blue, red and green enamels, mounted to a ring base, marked "STERLING" along with the Canadian silver standard mark on the inside of the ring, measuring 18 mm in diameter to the outer edges, intact enamels, extremely fine.