Like I said, I am a Coachaholic! The quality of these bags are irresistible. I have a hard time resisting anything Coach! I have been selling Coach items on Ebay and have been doing so for over 10 years. …………………… Almost all numbers beginning with H4B- are fake, like these: H4B-0532 H4B-0516 H4B-0678 H4B-0517 except for H4B-8983 which should only be on a Scooter Bag and H4B-9948 on a Bucket Bag. Coach bags will never have serial numbers in these formats, and will NEVER say Made In Korea. but there are many more number combinations being used. These are just SOME of the numbers found on counterfeit bags that were made In Korea: 501-02 701-02 101-22 101-147 and anything starting with 101-,102-, 201-, 202-, 301-, etc. The following numbers will always indicate a counterfeit Coach bag, especially any serial number starting with NT- or TN- : NT-4903 NT-4908 NT-4115 NT-4157 TN-9085 TN-9096 TN-9951 TN-4186 7H-7456 4C-9911 40-8624 In fact, ANY Coach bag with only two letters or one number and one letter to the left of the hyphen can be assumed to be fake, whether or not the number is in the above list ……………………………. Where can I check the serial number on my Coach bag?