Hi,
Your image of marks twice, once rotated.


After careful consideration, looking at the weak unclear town mark with dots, the town mark of Haarlem springs to mind, being a sword flanked by two stars under a cross and crown. The (unclear)provincial standard mark for Holland, being a lion rampant under a crown and the year letter Z for Haarlem 1734. The maker's mark
ɪV could be for Jan Verdoes, registered in Haarlem 1734-1768 a known maker of teapots, tea caddies and brandy bowls. Right corner image
Tremolirstich (zig-zag line) made by assayer to determine silver standard (934/1000)
Haarlem town mark and province standard mark 1734-1735
The marks of Jan Verdoes.
NB his mark can also be encountered as a falsification.
Haarlem year letter Z for 1734 1st & 2nd standard with town mark uncrowned
The marks on a silver tea caddy attributed to Jan Verdoes;It appears the same worn/damaged town mark punch used.

Also see:
viewtopic.php?f=5&t=32028#p80360Please judge for your self
Fake or Fortune?
Peter.
Source;
Haarlemse zilversmeden en hun merken (Dutch Edition).
k. A. Citroen