English Cover of book 8 of Mutt and Jeff compilations....
English Book cover for the 11th compilation of Mutt and Jeff comics....
English Book cover for a 1910s compilation of Mutt and Jeff....
English Cover for a joke book featuring Mutt and Jeff. determination method or standard: SHA-1...
English Book cover for a 1926 Mutt and Jeff collection....
English Cover of the third compilation of Mutt and Jeff comics....
English Cover of the fourth compilation of Mutt and Jeff comics....