Lubeck Crest with 4 Schilling in wreath above, CIVITATIS X.L.LL.IMPERIALIS 1729 // Crowned imperial eagle, 4 in circle on breast, LUBECKS.GOURANT.GELDT, JJJ below. 23mm, 2.89 grams. Mint of Lübeck. KM# 143, Löbbecke# 273
The mintmark JJJ refers to the mint master Johann Justus Jaster (1727-1758).