The FindMyPast entry gives a reference number and claims it's possible to get a copy, but I can't actually find a valid link on their site.
I then tried googling, got through to the QLD government website and can't see any facility for ordering copies of historic birth certificates. I tried to send them an enquiry but their form kept rejecting me as 'null (includes)' whatever that means.
I have a feeling a kind RootsChat member told me this isn't always possible, but in that case, why does FindMyPast say it is?
All guidance appreciated! I'd just like to know where he was born precisely! I see that 1874 is just after two gold rushes, which may be his parents were there.