What is this silver plated object ?

Can anybody please identify this family heirloom ? (PHOTO attached)
What was it used for ?
24cm long. 15cmwide. 30cm height.
Two tiered and holds 2 etched glass bowls 9cm tall - each with a diameter of 9.5cm
Has ornate filigree (see PHOTO)

Marks on base read: R&B EP 2252
(Maker has been identified as Roberts & Belk of Sheffield)
Ornate filigree.jpg
Silver plated receptacle - 19 Feb 2011 (2).jpg