Locate the s3 front bumper part number

[M4tt29]

Hello, I have what I think is an s3 bumper in the shed but I'm not sure if it definitely is the s3 bumper or if it's an s-line bumper, i can't quite tell so I was wondering if anyone knew where the part number is on the front bumper so I can check which one it is, so far I can't find anything with part numbers on apart from the headlight washer covers etc

Thanks in advance