Definition of "fingerpost"

fingerpost

/ˈfɪŋ.ɡə(ɹ)ˌpəʊst/

noun
plural fingerposts
1. A board that shows the direction (and often distance) to a named place; especially one of several attached to a milepost
2. The milepost itself.
  Quotations
  ...some hint, which, besides confirming him in the theory of virtue, may, likewise, serve for a finger-post to virtuous action.
  1857, Herman Melville, The Confidence Man, Dix, Edwards & Co, published 1857, page 108