Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_46 ( issue_price VARCHAR, mintage VARCHAR, artist VARCHAR, year VARCHAR )

### Question ###
What is the issue price of a Year 2000 coin by artist John Mardon of the Included in Steam Buggy mintage.

### Accurate SQL ###

SELECT issue_price FROM table_name_46 WHERE artist = "john mardon" AND year = 2000 AND mintage = "included in steam buggy"