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_39905 ( "Number" real, "Builder" text, "Type" text, "Date" text, "Works number" text )

### Question ###
Which Works number has a Builder of canadian engine & machinery company, and a Number smaller than 3?

### Accurate SQL ###

SELECT "Works number" FROM table_39905 WHERE "Builder" = 'canadian engine & machinery company' AND "Number" < '3'