Section 229-G. Marking watch cases sterling or sterling silver

Any person,
  firm, corporation or association who makes or sells, or offers  to  sell
  or  dispose  of  or  has in his or its possession with intent to sell or
  dispose of, any article of merchandise comprised of works  or  movements
  and  a case or covering applied or attached thereto, wholly or partially
  concealing said works or movements marked, stamped or branded  with  the
  words  "sterling"  or  "sterling  silver,"  unless said case or covering
  shall contain not less than nine hundred and twenty-five one-thousandths
  parts of pure silver, is guilty of a misdemeanor.