Meaning of the Obverse - 1743-ICG Principality of East Friesland 1/12 Thaler

Hello,

What is the meaning of NIF on the obverse of the coin below?

N#394633

Thanks,

Felipe

 Same [N L F] applies to another coin 

N#358556 

and that document was all I could find, and is not N I F lettering. 

 On the link: ICG = Yohann Christian Gittermann (mintmaster, Esens Mint) 

so maybe the as-yet-unknown N L F was the designer.