Drivers electric window mechanism identify

[profprof21]

Hi. This is my first ever post. I need another front driver's door window mechanism. I bought the car with it not working. I've done all the checks and it's definitely the mechanism that's at fault - the electrics up to the connector are all fine and checked. I'm planning to get one over the internet eg ebay, but I need to identify which one I have.
Can anybody tell me how many different mechanisms (driver's door) there are and what the distinguishing features are.
Thanks in advance!