This is a sterling silver 'My Last Rolo' novelty item, featuring a classic round shape.
The rolo is fully hallmarked with CWS maker’s mark and date letter ‘e’
Weighs 18 grams, width 2.3cm x 1.3cm
There are a couple of very light scratches to the rolo but otherwise in very good condition. 
The box with it is very tatty as shown in photos and hence the price