hand on vs transship

hand on

verb
  • To transfer (something) to someone else, especially as a replacement for oneself (such as an official office or duty); to transfer something that was originally given to oneself from someone else. 

transship

verb
  • To transfer something from one vessel or conveyance to another for onward shipment. 

  • To be transferred from one vessel or conveyance to another for onward shipment. 

How often have the words hand on and transship occurred in a corpus of books? (source: Google Ngram Viewer )