user: Question: What type was issued in 1964?
Columns: ['Issued', 'Type', 'Design', 'Serial format', 'Serials issued']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1954.0, 'Passenger', 'black on orange', 'AB 123', 'unknown']
SQL:

assistant: SELECT "Type" FROM "Table" WHERE "Issued" = 1964.0;