|Released||27 February 2002 (Update)|
|Examine||Each certificate exchangable at Catherby for 5 shark|
|High alch||6 coins|
|Low alch||4 coins|
A Shark certificate is a certificate that is obtained by exchanging five shark with Owen in Catherby, Padik in the Fishing Guild, or by smashing Strange Barrels. Shark certificates are stackable and each one can be exchanged back for shark by talking to Owen or Padik.