OLD LETTER SCALE

I do not know the maker of this old letter scale. An advertisement from 1870 with a similar letter scale suggests that this scale came from Germany. The letter scale has an isosceles base, a special shape of the letter platform and a measuring scale fixed on only one side. The letter scale is probably quite old. The weighing range is 250 grams. The scale has a stripe per five grams. The unit of measurement grams has the abbreviation G. That is a bit strange for a German scale. The brass upright has a square cross-section. On the bottom of one of three legs it says VII. The adjusting screw and the letter tray bear the number 14. A somewhat similar copy was previously shown with a weighing range of 125 grams, see this one. The base, the letter tray, the counterweight, the reading and the upright are designed differently. The letter scale is 25.2 cm high. The letter tray is 7.7 cm wide. I couldn't find an image in a catalog. I did find the advertisements below with an image of somewhat similar letter scales.
Below are some more images of this old letter scale.