galley proof vs receipt

galley proof

noun
  • A trial page or proof of continuous text that has not been divided into pages. 

receipt

noun
  • (A piece of) evidence, documentation, etc. to prove one's past actions, accomplishments, etc. 

  • A quantity or amount received; takings. 

  • (A piece of) evidence (e.g. documentation or screen captures) of past wrongdoing. 

  • A written acknowledgment that a specified article or sum of money has been received. 

  • The act of receiving, or the fact of having been received. 

verb
  • To give or write a receipt (for something). 

  • To put a receipt on, as by writing or stamping; to mark a bill as having been paid. 

How often have the words galley proof and receipt occurred in a corpus of books? (source: Google Ngram Viewer )