Just done my bathrooms up and didn't see anything like that in my browsing, didn't even see any subway tiles. Mainly searched the Northern Beaches. I did hear of a place at Smithfield that was huge, and very cheap but can't think of the name of it now. Found this place http://tilemegamart.com.au/products/indoor-tiles/ Looks like they have a huge range. Try Google or otherwise let your fingers do the walking through the yellow pages might be the best option to narrow things down, unless anyone else can give you a direct link.

There used to be a discontinued tile store in Sydney.

Thanks, great link. Only thing is, I want the real deal, don't like fake stuff!! There are ways of neutralizing lead paints. With special varnish etc. Anyway this is for decoration only and won't be handled once on the wall.

I think the interior design team is the same one who did their Sydney restaurant - they are not on Houzz but their name is Meacham Nockles McQualter. Might be worth a quick email to them to see where they sourced from.