What sword is the word on the pen holder?

The word on the pen container is Dejian. The cursive script in German is not very similar to the modern script, so that people who have never studied cursive script can't see what it is. Cursive script is a cursive script written on paper and silk, which began in the early Han Dynasty and is characterized by simple structure and continuous strokes. In the Tang Dynasty, cursive script has become an important part of China's calligraphy art, and there are still "cursive script" and "weeds". Four Ancient Poems handed down by Zhang Xu is a work of weeds. Pen container is the most important stationery in ancient China except pens, ink, paper and inkstone, and it has been deeply loved by literati since ancient times.