Hi, welcome to the forum. Dutch ornamental spoon. The maker's mark in a square shield is rubbed and not clear enough to be identified. The lion passant above 2 for 2 nd standard silver 833/000 fineness, used 1814-1953. Are there no other marks, like assay office mark or Minerva head and a year letter?
For Dutch ( hall)marks see:viewtopic.php?f=5&t=32028