weighing a letter
This is a small magnetic letter scale. The action is based on the principle of opposing magnetic poles. The chart has three values: 20, 50 and 100 grams. The scale is delivered in a box with a cover. The directions for use are presented on a leaflet. The cap of the letter scale has the text: Intensaïn 150-Lanitop. This is a cardiac medicine which was introduced in 1971. Obviously this was a promotional article. Before a similar scale was presented, look at the magnetic letter scale. Below some more pictures of this letter scale.
the letter clip is catched
continuously by the magnet
