Identification structure for games and educational use and for other use

摘要

An identification structure and method for temporary or short term identification of a portion of a surface or substrate. The structure and method include the use of viscous material which is displaced by pressure applied thereto and which retains its displaced condition until smoothed out by any suitable means. Preferably, the viscous material is enclosed in a substantially flat bag which has opposed transparent portions. The viscous material is visible but also has a high degree of transparency. Identification of a portion of a surface or substrate is made as the bag is positioned immediately above or adjacent thereto or in engagement with the surface or substrate. All portions of the surface or substrate are normally visible through the bag and through the viscous material. Pressure is applied to the bag immediately above the portion of the surface to be identified. Such pressure displaces the portion of the viscous material which is immediately above the portion of the surface or substrate to be identified, and that portion of the surface or substrate is thus directly visible through the bag. Thus, the identified portion of the surface or substrate is a portion which is more clearly visible through the bag than portions of the surface or substrate which have the viscous material immediately thereabove.