Okay folks , here's the mystery, can you help solve it?
Duncan from Listed Magazine has donated a signed Celtic top but we don't know which Celtic players have signed it, we've racked our brains for about three minutes over this and thought fellow Celtic supporters may be able to shed some light on who's signatures they are.
Do you have a signature on a shirt, an autograph or know of somewhere on the internet where we could compare signatures, let us know or send us a photo.
We are sure we have solved 12 from the 16 signatures on the shirt, we don't have a clue about the others but the ones we have solved might give you an idea of the players who may have penned the others.
Below are larger images of each signature on the shirt, the shirt is from season 2002/03.
Here's the list so far.
1. Unknown
2.Johan Mjallby
3. Colin Healy
4. Henrik Larsson
5. Steve Walford
6. Stephen Crainey
7. Stan Petrov
8. Unknown
9. Jackie McNamara
10. Tommy Johnson
11. Terry Gennoe- Goalkeeping Coach
12. Joos Valgaeren
13. Jonathan Gould - Goalkeeper
14. Chris Sutton
15. Ramon Vega
16. Jamie Smith