1896 German States (Kingdom of Prussia) Coin/Medal

Trying to identify the item in the attached photos.   Hours of internet sleuthing and I'm coming up empty.

Fairly certain it's 90% silver based on specific gravity test results of 10.29

Fully Non magnetic including the pin.  

Edge is smooth. 

Pin appears to have been added after the fact.  It is affixed to the face of the reverse not the rim.

total weight 36 grams

diameter 40.6 mm

thickness 3 mm

Similar in size, weight and subject matter to the 1901 5 Mark:

N#26474

Anybody have any info?  Coin?  Medal?  

Cannot find it in the Numista Catalog. 

Obverse

FRIEDRICH I 1696-1896 WILHELM II

Reverse

INTERNATIONALE 1896 KUNSTAUSSTELLUNG

BERLIN

Also similar subject matter

N#400309

Poster from the related Art Exhibition.  

You are answering your own question with what you have found. 👍 well done, you are the exception to the rule, most posts here just want an answer without doing any work themselves.

Just to confirm what you already know, from what I see this is a commemorative token  / medallion from the Art Exhibition in Berlin 1896. The exhibition was held on the 200 anniversary of the founding or association with the King of Prussia in 1696 of the „Royal academy of Art“. On the token are the two kings, Frederick I (1696) & Wiiliam II (1896) and someone has later turned it into a broich. 
 

Just for your info when translating the Poster, „Königl.“ is short for Königlich, and the small “s“ of this time was written as an „f“ without the horizontal line (-) through the top half. So Künste looks like Künfte…etc 

Thanks for the encouragement.  I'm new here.  Do I have enough to justify a new catalog entry?

Sure 100%, under commemorative medals in exonumia like the gold one you found.

N#400309

link that one as related, as it is the same exhibition, happy to do the transition for you if you need. Also add the poster in info it is relevant and cool.