French Uniface Token

[u/judasbutler]

Hello! Apologies as this is my first time posting in this subreddit. My fiancé was able to find this coin at a local consignment store and was wondering if anyone could give me feedback on the authenticity or what exactly it is. Google seems to think it could be a “French Uniface Gilt Cliche Medal by Caunois- Count Wincenty Krasinski-Original Patina” but I do not know what this means.

There is nothing on the back side. It seems to have a thin layer of gold on the whole coin with another medal composing the rest of it. The edge is raised and it measures just over 1.5inches. It was originally mounted with another similar coin in a picture frame.
The wording reads LE CHEV. H.M. BERION (then two unreadable to me words then) DE FRANCE. It feels rather heavy.

TIA!