Hi Paul,
Frisian brandy bowl with pseudo/fake or fantasy marks, probably made late 19th-early 20th century.
These are Dutch pseudo marks; script IIS pseudo maker's mark of Amsterdam masterJohan Hendrik Schiotling, the so called glasses another pseudo maker's mark, the D pseudo year letter.
Reference (57),(445), (411), (224): Valse Zilvermerken in Nederland K.A. Citroen ISBN 90-352-1058-1
Below another variation of those pseudo/imitation marks;
Peter.