Hi Ian, welcome to the forum. Silver pillbox. The maker's mark: BWE
conjoined monogram in (double) oval for; B. W. van Eldik & A.F. van der Scheer also known as Hollandia Zilversmeden, located city of Zutphen. The mark registered from 1917/1950. The Minerva head or assay office mark with the regional assay office letter H for the city of Arnhem. The circular mark in the lid is a Minerva head.
Somewhere hidden, if you look carefully with the use of a magnifying glass you will find a tiny little year letter.
For the maker's mark see:viewtopic.php?f=5&t=28590