Maker's mark appears to be, as already suggested, 'J.GULDBRANDSEN' of Horsens:
From a 1982 article on Horsens silversmiths, showing the 'J.Guldbrandsen' mark, noting Johannes Guldbrandsen (born in Vejle) was made master in 1895, the 'Guldbrandsen' mark first used in 1909, and footnote suggesting Bøje's stamp 3476, attributed to the Vejle maker, more likely the Horsens maker:
Advertisement from a 1903/04 Horsens directory:
~Cheryl