Above the 1959 King Zephyr Tenor with the original deep sharp engraving. Notice the color of the original aged lacquer. Notice the clear unoriginal color of the relac's lacquer. Look for missing engraving in spots other than those that get natural wear. Yet Another clue.
Above a similar 1959 King Zephyr Tenor where the original engraving has been buffed away and is missing. Also the original lacquer has been removed and replaced with a clear unoriginal looking lacquer.