In 1967 Guild's Carlo Greco built the most ornate custom guitar ever designed by Travis (see Great Acoustics, page 130). An unusual feature of the guitar's construction was a solid top that was carved on the outside but left flat inside to give the guitar more mass and reduce feedback. Travis also bought the first Standel amplifier when they were introduced in 1953, and it was apparently the only guitar amp he endorsed during his career. He also used a Music Man electric guitar amp built for him by Leo Fender in later years.