The semi-hollow-body design was originally an attempt to reduce the weight of the solid-body Telecaster guitar, which had gotten ever heavier throughout the 60s due to the dwindling supply of the light ash wood Fender had formerly used. The f-hole and reshaped pickguard are the most apparent visual clues to its construction.
There are now two versions of the Telecaster Thinline. The '69 version has two standard Telecaster pickups and a mahogany body, while the '72 version, based on the Fender Telecaster Deluxe, yields two Fender Wide Range pickups and a solid natural swamp ash body. Both guitars are made in Mexico and Japan as a part of the Classic Series of guitars and basses, followed by higher-end American-made Factory Special Run (FSR) versions from the Fender Custom Shop in 2005.
This shortlived model was based on the '69 Telecaster Thinline, but used many of the modern features found on the first-generation American Standard Series guitars manufactured between 1986 and 2000. It was introduced in 1998 and discontinued at the beginning of the 21st century.
Fender's second string brand, Squier, also make Thinline Telecasters, they are the Master Series Thinline Telecaster and the Vintage Modified Series Thinline Telecaster. The Master Series features twin Duncan Designed humbucking pickups, 2 volume and 2 tone controls and a 3 position toggle switch. The Vintage Modified Series is more traditional, based around the '69 Fender Thinline, featuring 2 Duncan Designed single coil pickups, 1 volume and 1 tone control with a 3 position toggle switch. However, in a break from the usual Fender standard, the Squier Thinline Telecasters both feature the more Gibson-esque shorter 24.75" scale where Fender use a 25.5" scale.