Pink Quartz Geode with Sterling Silver Rim London 1975

Description

Heading : Pink Quartz Geode with Sterling silver Rim
Date : Hallmarked in London 1975 for CMC
Period : Elizabeth II
Origin : London England
Decoration : Hallmarked silver rim
Size :  Height 7.4cm, max width when opened  10.1
Condition : As new
Restoration : None
Weight :  200 grams

A novelty trinket box or perhaps an unusual way to propose?