Question: what's the series with reverse being Swimming
SQL: SELECT "Series" FROM "1-12284476-8" WHERE "Reverse" = 'Swimming';

Question: what's the alloy with series being II series
SQL: SELECT "Alloy" FROM "1-12284476-8" WHERE "Series" = 'II series';

Question: what's the denomination with year being 2008 and reverse being Football
SQL: SELECT "Denomination" FROM "1-12284476-8" WHERE "Year" = 2008.0 AND "Reverse" = 'Football';

Question:  how many reverse with series being III series
SQL: SELECT COUNT("Reverse") FROM "1-12284476-8" WHERE "Series" = 'III series';