Prototype and Forerunner

noun

• A standard or typical example.
  • usage: "he is the prototype of good breeding"; "he provided America with an image of the good father"
  • synonyms: paradigm, epitome, image

(n.) An original or model after which anything is copied; the pattern of anything to be engraved or otherwise copied, cast or the like; a primary form; exemplar; archetype.

noun

• A person who goes before or announces the coming of another.
  • synonyms: precursor
• Something that precedes and indicates the approach of something or someone.
  • synonyms: harbinger, predecessor, herald, precursor
• Anything that precedes something similar in time.
  • usage: "phrenology was an antecedent of modern neuroscience"
  • synonyms: antecedent

• (n.) A predecessor; an ancestor.
• (n.) A piece of rag terminating the log line.
• (n.) A messenger sent before to give notice of the approach of others; a harbinger; a sign foreshowing something; a prognostic; as, the forerunner of a fever.