This little magnetic letter scale was a promotional article of the medicine Lexotanil® 6. This medicine with the active chemical Bromazepam is on the international market since 1974. The opposing weighing force derives from the two cylindrical magnets repulsing one other. The chart is kept very simple: 20, 50, 100 and 250 grams. These are postal weight limits. Below some more pictures of this magnetic letter scale.
magnetic letter scale
