Royal Court and ?? jouvelier. Born in Odense 1809, educated in Odense in 1828. Going to Copenhagen 1830 employed for the next 11 years. Working in Paris.
Citienship 24/7-1841 with shop in Gothersgade.
1848 he becomes royal juvelier in 1854 he buy a house at Kongens Nytorv.
dead 1877
So this page should be between 1854 and 1877. But is a bit younger.
On back of the page is this

She is fashion 1870-1890
On the Michelsen picture we can read 1841 (left) and 1883 (right)
.