Hi, Have seen the same form and decoration with Netherlands false marks and Hanau pseudos. A number of Hanau firms did use pseudos that resembled the Augsburg pyr, but could not find any examples that match this one exactly.
This is in Dutch or perhaps in Frisian a so called roomlepel or roomlepeltje.
The marks are in my opinion spurious or in a another word pseudo-marks made to look like the pyr of Augsburg and the Dutch re-assaying mark of 1807 the crowned "O".
I know that the firms of Hanau have been producing these sort of spoons because I have one myself marked with a smaller pyr and "800"; both marks embedded in the design.
There are Dutch firms that have been using pseudo-marks for example Alle de Haas in Sneek and Paulus van der Beek in Den Haag, Workum and Franeker.