A private property line plaque embedded in the New York City sidewalk that reads, "Property of name crossing is by revocable license only" to declare the the rights of private property owner. The public is allowed to cross and utilize the space by "revocable license' only. This is an appearance attempt by the property owner to prevent the walkway space that is open to the public to use as part of the sidewalk from becoming a public right of way by the mean of a prescriptive easement.