Hello
Your ladle is from Strasbourg, 1819-1838, as seen by the standard mark for 800 silver, and the guarantee mark with number 65.
We’ve seen this maker OB three times before, on a spoon, a cruet stand and a beaker, with no attribution.
viewtopic.php?f=7&t=58547&p=191953&hili ... rg#p191953
Regards.