Jonass widow could have made a lot of money by selling them, but she wanted to keep them together and allow people to appreciate them.
A custom-built case has been created to house examples from the collection.
They will be changed regularly.
Among the star exhibits are a tiger, a skilfully-carved snail on a mushroom made from fossilised wood, and Japanese figures created in the 20th century.
Other highlights in the collection include a depiction of a rotting pear with insects inside, a rare boar tooth, and carvings of sea slugs and other creatures.
