Iron corkscrew, pin-shaped, sharply flared, corkscrew tool equipment founding iron metal, forged Iron corkscrew Long conical pen with round eye. Usually with slightly slanted little pronounced hook from the end of the pen archeology Rotterdam Stadscentrum Stadsdriehoek Spaarbankstraat Market Binnenrotte open wine drinking cork uncorking Soil discovery Inner rotte between former Spaarbank and Markt hoek Spaarbankstraat.