icon for terabyte not appearing on finder

[DrWho]

as it says in the title my hard drive is nowhere to be found when I look at the desktop/finder screen. I can still access it by opening Machintosh HD but as far as I know there is no other way.

How can I go about fixing this/getting the icon back?

P.S.

iMac G5 about 2-3 years old, Tiger 10.4.11

 

[madog]

Finder menu, preferences, show these items on desktop, check hard drives and external drives.

 

[DrWho]

Came back

Thank you for the advice