inconsequential vs not worth a Continental

inconsequential

adj
  • Having no consequence; not consequential; of little importance. 

  • Not logically following from the premises. 

noun
  • Something unimportant; something that does not matter. 

not worth a Continental

adj
  • worthless, lacking in value, especially due to economic inflation. 

How often have the words inconsequential and not worth a Continental occurred in a corpus of books? (source: Google Ngram Viewer )