Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
In early 1873, Owen sound had what works number?

### Inputs:
table_name: table, columns: ['Number', 'Name', 'Builder', 'Type', 'Date', 'Works number']

### Response:
SELECT Works number FROM table WHERE Date = early 1873 AND Name = owen sound