Integrated circuit Hitachi HD61J215P, DIP package.
Good visual condition, as shown in photos.
Vintage mask ROM manufactured by Hitachi, used to store fixed program or data.
Typically found in dedicated electronic systems such as control boards, industrial equipment, embedded systems, or arcade / game hardware depending on the version.
Not tested, sold as is, for collection, restoration or parts.
Offers welcome if the price does not match your expectations.