21 Cent - not Century or Clarendon. This is an original font family designed from scratch. 21 Cent is named after a magical coin that brings good luck. And well, in honor of the 21st century, of course.
21 cent family is used in the almanac of the State Hermitage Museum, St. Petersburg, Russia.

All members of 21 Cent family include the expanded character set of with support of Cyrillics, Central European and Baltic languages.