This is rare finnish 25 penniä coin from 1866, there is only 1 out there with these kind failures in coin.
25 penniä 1866 minted 807 000
Few are known of these variants and with this double compression there is only this one, so its super rare finnish coin
SNY 266.3.1 but this one has double compression on "25 penniä 1866" it totally unique coin. More finnish markka related content here: Suomenmarkat.fi website is in finnish language.