Somewhere between 1977 and 1979.
Completely tarnished and scratched up chrome with dull, lifeless lacquer when I bought it.
15 hours of work later and it shines like new.
[IMG]http://img.photobucket.com/albums/v489/avkid/391934_10151242955356333_1873071311_n_zps5dfe59d7.jpg[/IMG]