*The serial number is found on all cases from TUMI, SAMSONITE and RIMOWA.

Here you can see an example of what the serial number looks like on a Samsonite suitcase, the suitcase's unique number can typically be found inside the suitcase:

Here is a picture of where you can find the serial number on the outside of a RIMOWA suitcase:

Here is a picture of the serial number on a TUMI suitcase, typically found on the outside back of the suitcase or in the front pocket: