It's a 1939 SS 100 from the pre-Jaguar era. The name "Jaguar" was given to the car with its introduction in 1936, but the company was not named Jaguar until after WW II, when the initials "SS" were evocative of a lot less savory image than this car. This car came to the shop in its fully restored condition about three years ago. The owner, who lives in San Francisco, uses the car periodically to run a rally here or there and has put about 6500 mi. on it since its restoration. He brings it in for regular maintenance and whenever anything happens that needs repair. One repair that has come up arose from his being forced to hit the brakes suddenly to avoid a collision with a car that came suddenly from a side street. This sudden stop caused his tie rod link to bend severely and I deemed it unsafe for reuse if it was straightened. We made a new tube with appropriate threads in each end, set toe-in and he was back on the road.