About this motif
The Zollkanal used to separate the duty-free Speicherstadt from the rest of the city. Anyone bringing goods across the bridges had to declare them at the customs posts.
Traulsen's smallest version shows a tug with a barge in tow on the canal, a low bridge and, rising behind, the green cupola of St. Catherine's. About 10 x 14 cm on 20 x 25 cm paper, in black and white, coloured or framed.