Obverse
HM King Charles III facing left, designer's initials and coat of arms of Samoa lower, country name at bottom, denomination and year of issue along rim
Lettering: FA'AVAE I LE ATUA SAMOA HALF DOLLAR 2023 CHARLES III SAMOA DT
Reverse
The Viking Lander in Mars; logo at top, theme lower, date of spaceship launch below
Lettering: NASA VIKING I 1976
