Hey, guess what? Chris and I took a luthier's mirror and looked (for the first time) for any kind of mark or date. Stamped on the underside of the top is the letter G, followed by DEC (for December), and then handwritten in a kind of curlicue script, reminiscent of 19th-century Italian, are the numerals 69. So obviously December 1969... the question is, does the "G" stand for Guild or Greco?????