This is the only 1910 pattern struck that year. This used to be J1788 in earlier editions.
It is similar to the last design of 1909 J1939/P2022 but with Liberty and the date on opposite sides and with motto "In God We Trust" added to the bottom of the reverse. This used to be J1787 in earlier editions.
Only 2 are known and both are in the Smithsonian.
Photo courtesy of the National Numismatic Collection of the Smithsonian Institution.