Display rack with repositionable shelf

A display rack comprising:

• a base;
• at least one upright secured to the base;
• at least one crosspiece secured to the upright, said crosspiece comprising a first part extending on a first side of the upright and a second part extending on a second, opposed side of the upright, wherein the crosspiece comprises a wire loop comprising a first end portion on the first side of the upright and a second end portion on the second side of the upright;
• at least one shelf comprising first and second clips, each clip comprising a respective lip element configured to fit over and to engage a first side of the crosspiece, and a respective spring element configured to snap-lock against a second, opposed side of the crosspiece;
• said first and second clips positioned on the shelf such that the shelf is mountable on the crosspiece in each of three positions:
• a first position, in which both spring elements are snap-locked against the crosspiece with the first clip disposed on the first side of the upright and the second clip disposed on the second side of the upright;
• a second position, in which at least the second spring element is snap-locked against the first part of the crosspiece with both the first and second clips disposed on the first side of the upright;
• and
• a third position, in which at least the first spring element is snap-locked against the second part of the crosspiece with both the first and second clips on the second side of the upright;
• wherein each clip comprises a set of tabs protruding into a space bounded by the wire loop, at least some of said set of tabs are positioned to mechanically interfere with the wire loop when the shelf is mounted on the crosspiece in at least the second and third positions, thereby limiting sliding movement of the shelf along the crosspiece away from the upright.