What is this Coin? Cant Identify. Challenging.

Back:

 Pictures cropped. What is the diameter? 

Burned an inch*

 So around 32mm 

Yes! Sorry, I thought maybe having it measured in the picture would offer a more open idea of what it is, other than what I just say it is. I am really lacking in this department. This coin was passed onto me from family, and I cant figure it out. Its been years, and I am finally at the point where i would like to know. Where I am in the states, for ancient coins, I am directed to go online for sources. All coin and antique stores here are ultimately in a trajectory for more contemporary coins and/or monetary.

 Something like this - as yours is 32mm it may have worn down in size 

N#251897 [maybe 34.5mm] 

 with a tall neck portrait facing right with ribbon in hair and GERM COS lettering above. 

On reverse a central seated figure facing left. 

 For comparison 

 Similar, especially the hair and lettering above.