Sharpness vs Shelve

Sharpness

name

  • An inland port in Stroud district, Gloucestershire, England (OS grid ref SO6702). 

Shelve

name

  • A hamlet in Worthen with Shelve parish, western Shropshire, England (OS grid ref SO3399). 

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