It was an ancient instrument used in navigation. Triangular scale, template, triangle, square. Drawing implement . It was also called cartabono.
DRAWING CARTABON:INSTRUMENTO: RULE, SQUARE, SHEET TO MEASURE LENGTHS.
CARTABON:PLANTILLA TRIANGULAR PLASTIC OR WOOD WITH ANGLES OF 30 °, 60 ° AND 90 ° USEFUL FOR TECHNICAL DRAWINGS.
