shilling sign vs sol

shilling sign

noun
  • The symbol '/' used in the United Kingdom before decimalisation to separate shillings from pence when writing out sums of money. (Examples: 7/6 = seven shillings and six pence; 7/- = seven shillings exactly.) 

sol

noun
  • An old coin from France and some other countries worth 12 deniers. 

  • A type of colloid in which a solid is dispersed in a liquid. 

  • In a fixed-do system: the musical note G. 

  • A solar day on the planet Mars (equivalent to 24 hours, 39 minutes, 35 seconds). 

  • In full nuevo sol or new sol: the main currency unit of Peru which replaced the inti in 1991; also, a coin of this value. 

  • A former Spanish-American silver coin. 

  • In a movable-do or tonic sol-fa system: the fifth step in a scale, preceded by fa and followed by la. 

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