Martin guitar

Subject:

Comments:
: I have a Martin D 12-20, serial #295215. Obviously a 12 string. It is something I will never get rid of, because It belonged to my father, not to mention I'm not an idiot. : According to the serial number, It was made in 1972. I verified this via Martin's web site. I could not, however, get any other info on this particular model. I'm just curious about it's unique headstock design and what it was worth then and now. Any info is appreciated.