The world’s first postage stamp was issued in Great Britain in 1840. At that time sending a letter was something special, and stamps were expensive, so special boxes and cases were created to hold them.
Small stamp cases were meant to be carried on one’s person, sized to hold just a few stamps, available for emergencies. The simplest were of decorated cardboard, while the more elaborate were made of precious metals. Many had small rings attached so they could be suspended from a watch chain, necklace or Chatelaine. Some were so elaborately adorned that they were as much items of jewellery as utilitarian objects.
Today they are still highly collectable and can be made into fantastic necklaces. Look out for them at Antique & collectable fairs as well as online.