Which characteristic is used to easily distinguish a Russian Blue from its relative, the Nebelung?

Answer

The Nebelung is specifically a longhaired cat

While both share the blue, silver-tipped coat and green eyes, the Russian Blue is a shorthair breed, whereas the Nebelung is specifically longhaired.

Which characteristic is used to easily distinguish a Russian Blue from its relative, the Nebelung?
appearanceÇatbreedFeline