This question seems to be at the very hart of philosophy? How do we know that a property of an object is part of the object itself? When is the propery objective? Can the object be seen when standing on its own? How (if) can we know how an object looks like? Will we be able to see if the object has cöntent? Is this again an objective content? Is there more to reality than objects with content or must they be considered in a wider objective perspective. Has the wider objective perspective to be considered a part of an objective reality? Can we ever objectively know this wider reality? Is ultimately all objective reality dependent on the contents that the objective reality may posses? Can we experience this content by litterally swallowing the objective reality, say by eating? Are we ourselves part an objective reality that can be studied from the outside but experienced from the inside only? How does one even define objectivity? Is subjectivity involved? Are subjects objects too? Does it make sense to make the distinction at all (this seems to be the attitude of modern science). Etcetera, etcetera.
It might look as if I'm guiding the reader towards some kind of preconceived notion of reality. But this is not the case. These questions can be asked within every culture. For example, the Eucharist is swallowed to get closer to God. Gods are thought to objectively exist in ancient Greece. This doesn't mean that they were objects but that they existed independently of people.It's a truly philosophical question and it's maybe not asked in the cultures themselves (Aboriginals won't ask this question about their Dreamtime nor will Muslims ask this question about Allah; they exist and any questioning can endanger them). Can the philosophical question be answered in a non philosophical way, say in a historical, antropological, mathematical, or theoretically physical way? Or in a religious way?
Will we always be bound to culture? Is this the old struggle between relativism ang objectivism all over again? Is relativism objective? Or...? But the main question is: What is an objective property? Any contribution is welcome!