Enthusiasm is not a method of judgment. Please read previous posts in regard of the crown in German speaking countries.
``Die alte Adelskrone des untitulierten Niederadels``
``Older nobility crown of lower nobility without titles``
They do not have ``Graf`` or ``Freiherr`` title in the name, but simply ``von`` or ``am``.
Most of them have not been mentioned so far.
Moreover, this is not a royal gift (craftsmanship, embossing).
And last but not least, attributing ``FR`` to Brothers Friedländer is a speculation.