A national emblem is a symbol that represents a nation. It may or may not appear on the national flag. It is usually something from the natural world, eg. an animal or bird, but can be any object.
The official national emblems of nations of the world in alphabetical order :
... Warships[?], Birkenhead
Lady Lever Art Gallery[?]
Liverpool Museum[?]
Merseyside Maritime Museum[?]
Museum of Liverpool Life[?]
Tate Liverpool
Walker Art ...