This instrument is two in one. On one hand it has a fully functional compass and on the other a perpetual calendar with which you can find out, for example, the day of the week on which you or any relative or friend was born. You can also find out the day of the week on which some historical event occurred. or the day on which your next birthday will fall and all with a simple calculation.
It is also perfectly presented in a wooden box and includes a small brochure with the history of the compass.
A perfect gift for nature and science lovers.
Measures:
Diameter: 54mm
Height: 20mm
