(Deutsches Schutzwall-Ehrenzeichen). A bronze medal commemorating the Limes Programme of the 1938 Westwall (Siegfried Line) construction, the obverse presents a man digging over a symbol “GB” for the organization Grün u. Bilfinger, circumscribed with the statement HAUPTUNTERNEHMER GRÜN U. BILFINGER A.G. (Main Entrepreneur Grün & Bilfinger A.G.), the reverse shows a soldier behind a frontier fortification protecting a woman and child, surrounded by the words LIMES 1938 and ABSCHNITT OFFENBURG (Section Offenburg), with maker hallmark BM, on loop for suspension, measuring 36 mm in diameter, and in extremely fine condition.