CREATE TABLE table_name_57 (issue_price__bu_ VARCHAR, _clarification_needed_ VARCHAR, mintage__proof_ VARCHAR)

What's listed as the Issue Price (BU) [Clarification Needed] with a Mintage (Proof) of 29,586?
SELECT issue_price__bu_ AS "_clarification_needed_" FROM table_name_57 WHERE mintage__proof_ = "29,586"
SELECT "issue_price__bu_" AS "_clarification_needed_" FROM "table_name_57" WHERE "29,586" = "mintage__proof_"