Fleur-De-Lis Ancient Silver Coin? Unsure

to the CCF, Wickedbilt.
Providing weight and diameter would be helpful.

Welcome, but sorry I do not have an encouraging opinion. It looks like a fantasy token at first sight. To regular.
Is the metal nickel?
Even if silver, medieval silver was a poor alloy. Surviving coins are not nice and shiny.

Well I love a head-scratcher. The font on these letters is middle-ages, but that image of a castle on fire is not something that I've seen before. I wonder if this isn't one of those souvenir Deniers you can pick up at a Renaissance Fair.. Here is my best understanding of the legends:

REIWE NESCIT MUNDUS (the second two words are Latin and mean something like the world grows old) along the rim and MEDI PRESEN SECULA near the fleur de lis. On the other side, I'm seeing SENESCIT MUNDUS (also the world grows old). I'm hoping that one of our real experts will weigh in with their thoughts and gentle corrections.

I think the first phrase is meant to be read rejuve nescit mundus.
A burning castle. The idea is clear. The attempt at latin and use of gothic inspired type letters is not fortunate.

Looks like something an apocalyptic sect could have used. Many of those even now. But few care about the french monarchy.
It can be recent. Or it can be a hundred years old. The style of the castle would not be out of place in France in the twenties.