The Vintage Auto-tune Model 4138 Inductive Timing Light is a classic diagnostic tool for automotive timing systems. Made in the United States, this device is designed to accurately measure and display the timing of the engine with its inductive capabilities. It comes with its original box and manual, making it a reliable and authentic piece for collectors or automotive enthusiasts looking for a piece of history to add to their collection. This timing light is a practical and durable tool for troubleshooting and adjusting engine timing.