Question: When was Color of Green first issued?
SQL: SELECT MIN("First issued") FROM "2-1354940-2" WHERE "Color" = 'Green';

Question: When was Color of Green last issued?
SQL: SELECT MAX("First issued") FROM "2-1354940-2" WHERE "Color" = 'Green';

Question: What reverse has a color of Green?
SQL: SELECT "Reverse" FROM "2-1354940-2" WHERE "Color" = 'Green';

Question: How much was a Reverse of Guitar of Agustín Pío Barrios before 1998?
SQL: SELECT "Value" FROM "2-1354940-2" WHERE "First issued" < 1998.0 AND "Reverse" = 'Guitar of Agustín Pío Barrios';