ID:
2124
Maker's Name:
Staedtler
Where made:
Germany
circa 1970
Dimensions:
23.6 × 16.1 × 2.3 cm
These pens were used with 'Indian Ink'.
Each nib is a cylindrical tube of specified diameter with a slightly longer fine wire inside that raises a conical valve when it touches the drawing surface, allowing the ink to flow to form a line of uniform width.
This set was used by Dr Norman Heckenberg to prepare diagrams and graphs for publications and his PhD thesis.
