Distance Diagramsby Maaz Jan, 2023 3064-30-D-1Diagram by Maaz Jan of Frere Hall in relation to monastery Ter Apel (building adapted from Eltjens’ drawings). The diagram, which demonstrates a geometric distance between two towers, appropriates the diagrammatic language from Eltjens’ Leerboek.The diagram shows two buildings, a large hall and a small monastery, drawn from the side in black ink. Inbetween the two buildings, several geometric lines are drawn, measuring the distance. The end of each line is marked with arabic letters. 3064-30-D-2Arabic calligraphic tracing by Maaz Jan, based on a land surveyor diagram by Eltje Jacob Eltjens in his Leerboek Landmeetkunde (1750).The diagram, drawn on a tracing paper which is paperclipped to another sheet, shows a circle with a horizontal line, drawn in red ink. Both ends of the line are marked with arabic letters. 3064-30-D-3Arabic calligraphic tracing by Maaz Jan, based on a land surveyor diagram by Eltje Jacob Eltjens in his Leerboek Landmeetkunde (1750).The diagram, drawn on a tracing paper, shows a half-circle with a triangle inside, drawn in red ink. The end of each line is marked with arabic letters. 3064-30-D-4Arabic calligraphic tracing by Maaz Jan, based on a land surveyor diagram by Eltje Jacob Eltjens in his Leerboek Landmeetkunde (1750).The diagram, drawn on a tracing paper, shows a circle with a trapezoid-like shape inside, drawn in red ink. The corners of the shape are connected with two crossing lines. The end of each line is marked with arabic letters. 3064-30-D-5Arabic calligraphic tracing by Maaz Jan, based on a land surveyor diagram by Eltje Jacob Eltjens in his Leerboek Landmeetkunde (1750).The diagram, drawn on a tracing paper, shows a tower on the right, drawn in black ink. From the bottom left, three lines in red ink go to the bottom of the tower, the top of its roof and the bottom of its roof. Together they form a triangle. The end of each line is marked with arabic letters. 3064-30-D-6Arabic calligraphic tracing by Maaz Jan, based on a land surveyor diagram by Eltje Jacob Eltjens in his Leerboek Landmeetkunde (1750).The diagram, drawn on a tracing paper, shows a tree, a small tower, another tree and a large tower, all drawn in black ink. From the bottom of the small tower and the trees, lines in red ink go to the top of the large tower. Together they form a triangle. The end of each line is marked with arabic letters.