user: Question: What is the latest death with a description of BR-Built Inspection Saloon?
Columns: ['Number & name', 'Description', 'Current status', 'Livery', 'Date']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['No. 12059', 'Non-Corridor Third Class Compartment', 'Stored in the open as little more than a shell.', 'N/A', 1930.0]
SQL:

assistant: SELECT MAX("Date") FROM "Table" WHERE "Description" = 'BR-Built Inspection Saloon';