GUITARRA ELÉCTRICA DE JAZZ RARA VINTAGE 1980 POLYTONE IMPROV-1 ARCH TOP CON ESTUCHE
The Improv I is essentially an ES-175 but shallower. Decent sized C-shaped neck (smaller than a typical Gibson Historic Les Paul neck), excellent fretwork. The Improv 1 does hint a bit at the Ibanez GB-10.