Hi Adam,
That will be the maker's mark B₰V12 for: B. Verhoogt, registered in the city of Hoorn 1921 till 1949, this particular mark used around 1929/1949.
It are two miniature silver biscuit jars on a little tray, here is another one same time period:

Copies of 17th-18th century dollhouse silverware.
Best,
Peter