Latinus grossus ??

[amena]

I found this cigarette case, without any mark, which has a large coat of arms engraved and filled with niello.



The first question is that I can not explain the motto
" AUDAS NON FEROX"
In Latin it could make sense "audax non ferox" or at most "audeas non ferox"
Is it possible that the engraver made such a gross mistake? Or is there another explanation that I have not considered?
The second question is obviously: someone knows who this coat of arms belongs to ?
The transversal lines that can be glimpsed are slightly corroded.
Thanks for the attention
Amena

[Traintime]

Approximately getting "Valiant/Bold not Fierceness"...exacting forms of Latin aside.

[Traintime]

Someone engaged in state diplomacy? [Or even wildly, custom for a Trekker ...To boldy go to alien planets and restrain the captain from beating on the inhabitants". The horse might represent Kirk's equestrian fascination! Hey, it's a Saturday.]