Hi All,
Your image rotated and cut:
Example master’s mark on snuffbox;
The master’s mark according; Netherlands’Responsibility marks from 1797
Three dots above AK conjoined the master’s mark of; Andries Jzn Graves Kooiman JZ. Registered in Schoonhoven from June 1838 till March 1879, the year he died. During his sickness and after his dead, the master’s mark is used by his widow; Mopman, Klaaske Leverland, who sold the shop at the end of March 1879 to her son; Adrianus Andries Graves Kooiman (1879-1911).
Andries Jzn Graves Kooiman is more known for small boxes: tobacco, snuff, mint boxes including loderein boxes.
Best,
Oel.