Open possession
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
Possession of reni property is said to he "open" when held without concealment or attempt at secrecy, or without being covered up in the name of a third person, or otherwise attempted to be withdrawn from sight, but in such a manner that any person interested can ascertain who is actually in possession by proper observation and inquiry.
See Bass v. Pease, 79 111. App. 318.