Hi Kate,
Yes these are three Dutch pseudo marks and one Dutch hallmark, the sword mark for small silver items.
For Dutch pseudo marks see;
viewtopic.php?t=56948
The maker's mark
H2
W in a hexagon for
Hendrik
Wouters, registered municipality Nieuwer Amstel (Amstelveen) and Amsterdam, 1892-1897.
He was born in Amsterdam 28-2-1852 and married in 1879, at the age of 27, silversmith by profession, to Elisabeth Sneltjes (20).The daughter of silversmith Jan Cornelis Sneltjes, a well-known Amsterdam silversmith working for the famous firm Bonebakker & Zoon
viewtopic.php?p=193670#p193670
Hendrik Wouters, it appears, worked for a while as a silversmith without a registered maker's mark, probably in a workshop of a silversmith who was registered.
The Dutch sword mark;
The sword (used 1814-1905) and 2nd sword mark used 1906-1953. Standard mark for; small work silver minimum 833 fineness= 83.3% pure silver and used on small work without date letter and office mark and in combination with maker's mark. NB. This sword mark is also used on large works consisting of more than three parts interconnected by links or hinges. On these objects the office mark, standard mark and date letter were spread, one per part, the remaining parts were struck with the sword mark.
Two different swords have been used and are hard to keep apart. In 1953 the sword mark with numeral fineness was introduced.
Peter.
Source;
Waarborgholland, ˜Netherlands' Responsibility Marks since 1797. K.A. Citroen Valse Zilvermerken in Nederland