Question: How much did the Modern pentathlon III series coin weigh?
SQL: SELECT "Weight" FROM "2-12284476-8" WHERE "Series" = 'III series' AND "Reverse" = 'Modern pentathlon';

Question: What is the obverse of the Archery coin?
SQL: SELECT "Obverse" FROM "2-12284476-8" WHERE "Reverse" = 'Archery';

Question: What is the denomination of the III series?
SQL: SELECT "Denomination" FROM "2-12284476-8" WHERE "Series" = 'III series';

Question: What is the diameter of the Archery Reverse coin?
SQL: SELECT "Diameter" FROM "2-12284476-8" WHERE "Reverse" = 'Archery';