This set has 12 pieces as is, including one large compass,  one beam compass extension, one divider, two ruling pens, one small compass, one small divider, one small compass with ruling pen attachment,  and spare parts. All parts in very good and clean condition and working. 

note: The box is in good condition, there are signs of wear on the box.

A perfect, functional and vintage set for professional Geometers and illumination artwork.

Made in Germany.