Do Coach bags always have serial numbers?

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Tags

1. #serial
2. #stamped
3. #credo
4. #coach
5. #purses
6. #number
7. #smaller
8. #square
9. #leather
10. #seller
11. #inside
12. #because
13. #lining
14. #clutch
15. #patch
16. #claims
17. #authentic
18. #swingpack