I am cautious using the term 'new' for this account however this head has (un)fortunately never seen the field. 

First released in the early 1990's the STX Turbo is easily identifiable by the highly uncommon asymmetrical sidewall design with STX logo presented on one sidewall and a more common use of bars (3) on the opposing sidewall. 

The Turbo is another example from the pre-offset era with the front of the head have a flat design. This head shows absolutely zero wear and is an unusual find for any sports equipment that is nearly 35 years old. No ball marks on the inside of the head, no ball stop or remnants of the ball stop glue. The screw hole is unviolated and the scoop is amazingly mark free both on the interior and exterior. 

Additionally, the head comes complete with two natural brown leathers that would suggest that at some point it would have been traditionally strung.