5,354,707 A 10/1994 Chapple-Sokol et al.... 437/106 particular, the present invention utilizes
a collection of one 5,395,791 A 3/1995 Cheng et al................ 437/105 or more sizes of …

A novel encoding system, compositions for use therein and methods for determining the
source, location and/or identity of a particular item or component of interest is provided. In …