The rim gutters both reverse and obverse in different locations or not opposite of each other have me scratching or wanting to dig deeper. Just not 100% sure what to dig for. Traits I see and trying to piece together.
1. Looks like
Grease Filled Die.
2. Looks slightly misaligned on obverse.
3. Gutter (both sides).
4. Obverse looks like a potential rim
Cud.
I would verify weight is 2.5grams, as it looks 1993 or later.
Diameter should be 19mm or 3/4 inch.
Last I would check the edge (not the rim) for any straight line cracks to rule out possible collar damage or cracks. Thanks, Doug.