I have a Test page where I have added list viewer webpart for List01.
When I browse the page as Site admin, I see Logo Ribbon at top
When I click the List viewer web part "Logo Ribbon" is replaced with "List tools(Items and list highlighted)" Ribbon
When I browse the page anonmous user, I see Logo Ribbon at top(Anonmous user has permission to view site pages and list1)
When I click the List viewer web part "Logo Ribbon" disapper and is slides up.
Here I should be able to see the "Logo Ribbon" even if I select Logo Ribbon.