In 1610, he was employed at Kronborg Rifle Factory. In 1612, he was admitted to Helsingør Smiths Guild. His workshop was located at the corner of Sankt Annagade and Kongensgade. The latter street was for a while known as Caspar Finckes Stræde. In c. 1615, he created some of the decorative wrought iron work for
Frederiksborg Castle. By 161818, he had already created his elaborate wrought iron gate for Christian IV's Chapel in
Roskilde Cathedral. It features the inscription "CF. bin ich genant, diser Arbeit bin ich bekant". In 1622–30, he was back at
Hammermøllen in
Hellebæk. In 1631, he was appointed as court smith at
Copenhagen Castle. Frederiksborg Castle and
Kronborg Castle. The railing on the observation platform of the
Round Tower in Copenhagen is also attributed to him. He also contributed with decorative metalwork for a number of churches around the country. Many of his works incorporate his mark, a hammer crossed with a key. ==Personal life and legacy==