Here are three items of Royal Commemorative collectibles One is free (Milk Mug) as it has a hairline fracture

The Cup is made by Newhall pottery Official Design for the Coronation of King George VI and Queen Elizabeth 
The cup has no chips or cracks 

The Sugar bowl is is another design but for the same event 1937 Coronation - it is made by Lancaster Pottery and it has no chips and cracks

The free jug has a hairline and i restored Filled in a chip on the end of the spout   see last photo