I havent been able to find information regarding queen Victoria stamps in stampworld catologue. I have seen quite a selection of different denomiations 1866-90 for sale, I have found this catologue to be pretty thorough and my go to for current pricing, perhaps there is an alternative source, thanks for your help.
Stampworld is just a general catalog, great as long as one is not going into things too deep. For the stamps you are mentioning you would have to check an Australian Specialized Catalog. I suggest you check with your local library or maybe a stamp club