You will not find anything on any Australian web site
RGS was the hustler importer through their Power Up Products
Take some photos of the tag at different angles in good strong light .
A digital camera will do it better than a phone .
Drop the images into any photo editing app you have and increase the contrast , usually the numbers will jump out at you.
Occasionally I need to invert the colours ( make negative in photoshop ) and that works even better .
The numbers may not work on the US Hustler web page as often Australian imports have different series to the US domestic ones.