https://trc-images.nl/collection_images/hires/2018/2018.2019e.JPG#\\TRC-SERVER\TRCSharedWork\TRC Database\collection%20photographs\2018.2000\2018.2019e.JPG#
Batik tool with a fine flat round nib that is just about worn away.
The tool was made by STANGENHAUS & CO. They had a shop selling batik items at Berlin Charlottenburg Tauentzien Strasse 19a.