Silver Gilt Oyster Shell. This large Silver-Gilt Oyster Shell has been electro formed. The inside of the shell has been gilded. Our Silver shells can be used for salt or ornamental purposes. They are skilfully made by our Silversmith in the UK and will be fully hallmarked & boxed. Please note each shell is formed around a mould. This means all Silver-Gilt Oyster Shells will have the same realistic look and are the same in size and shape. The Silver-Gilt Oyster shells are not a stock item, and would be made to order which can take up to 4 weeks.