Offset locking device for display channels

A display rack comprising:

• a plurality of separate and distinct longitudinally elongate channels disposed in a common horizontal plane, each said channel having:
• A. a front, a track, and a pair of laterally spaced, longitudinally extending sides;
• B. a plurality of widely longitudinally spaced apart male lugs projecting laterally outwardly from one of said channel sides;
• and
• C. for each one of said lugs, an associated set of at least three relatively narrowly longitudinally spaced apart female slots defined by the other of said channel sides, said associated sets being widely longitudinally spaced apart, and each slot of said associated sets being configured and dimensioned to receive one of said lugs;
• said lugs and slots being configured and dimensioned to releasably retain an adjacent pair of said channels in a side-by-side longitudinally parallel relationship with said fronts of said pair of said channels in horizontal alignment or horizontal non-alignment depending on which slots of said associated sets said lugs are disposed in, said fronts of said adjacent pair of said channels being in horizontal alignment when said lugs are disposed in a middle slot of each associated set, and said fronts of said adjacent pair of said channels being in a horizontally stepped non-alignment when said lugs are disposed in a respective end slot of each associated set, said tray fronts in combination defining a stepped curve when said lugs are disposed in respective end slots of each associated set .