For items lost in the Sydney area:

Brad
http://www.metaldetectorhire.com.au/

 

Tony

http://www.metaldetectorservices.com.au

 

 

Melbourne:

Aaron

http://www.detect.net.au/

 

Perth:

Billy

http://www.losttreasure.com.au/

Brisbane :

John
http://www.johnbrack.com.au/