1950 Lincoln inVincible Eight Sales Brochure. The 1950 Lincoln "inVincible eight" Featuring V-Type Design, High Compression, and What They Mean to You. Premium Product of the world's largest volume experienced producer of V-type engines, Why V-type design results in a better engine, quick facts about high compression, and extras. The great Lincoln engine with Hydra-Matic--and ubeatable performance team. Back gives Engine Specifications. Good condition with minor wear and soiling [see photos].