Porsche Interserie Sieger – 1978 – Original Vintage Porsche Poster by Werbeagentur Strenger – Vintage Motorsport – 102x76 cm The Piece This original 1978 Porsche poster celebrates the brand's victory in the Interserie championship. Designed by Werbeagentur Strenger, the composition features dynamic motorsport imagery integrated with bold, functional typography characteristic of late 1970s automotive advertising. The layout emphasizes speed and engineering precision through a structured, high-contrast visual language. Why It Matters - An authentic artifact from Porsche's dominant era in 1970s endurance and Interserie racing. - Designed by Werbeagentur Strenger, the agency responsible for shaping Porsche's iconic visual identity. - Highly collectible among motorsport enthusiasts and automotive historians. Poster Details Year: 1978 Country: Germany Size: 102 x 76 cm Designer: Werbeagentur Strenger Condition Good vintage condition. Displays genuine character and authentic patina, framing beautifully. Please note: This piece shows small creases, slight creases along the side, small pinholes, and minor edge nicks. Take a look at the pictures. What you see is what you get. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution