CREATE TABLE table_name_1 (value VARCHAR, first_issued VARCHAR, reverse VARCHAR)

How much was a Reverse of guitar of agust n p o barrios before 1998?
SELECT value FROM table_name_1 WHERE first_issued < 1998 AND reverse = "guitar of agustín pío barrios"
SELECT "value" FROM "table_name_1" WHERE "first_issued" < 1998 AND "guitar of agustín pío barrios" = "reverse"