This is a vintage Ovation classical that dates somewhere between 1970-1973.
Ovation instruments are identified by a four digit model code. The individual numbers within the code will indicate production information about that model.
The first digit is (generally) 1.
The second digit describes the type of guitar:
1. Acoustic roundbacks or semi-hollow electric
The third digit indicates the depth of the guitar's bowl:
The fourth digit indicates the model (for the first 8 acoustics):
The color code follows the hyphen after the four digit model number. Colors available on Ovation guitars: