letter scale

The origin of this letter scale is unknown to me. The scale mechanism section is very likely from Germany. The wooden base with the black top layer of stone?, and with the three beautifully shaped support feet reminds me of France. The scale has no mark or logo. The 250 gram scale has a stripe of measure for every five grams. The 15 grams is indicated separately, it means that this letter scale was manufactured certainly before 1922. Only in 1922, the weight limit of 15 grams for sending letters was abolished in an international world postal treaty. The agreed limit was now 20 grams. In Germany this happened for domestic mail traffic already in 1900. For letter mail abroad this was introduced by April 1, 1906. Netherlands started with the weight limit of 20 grams instead of 15 grams for the domestic postal rates on October 1, 1908. For sending letters abroad the weight limit was previously adapted by October 1, 1907. In France, they implemented the 20 gram limit about in 1910. In Belgium shifted the weight limit of 15 grams to 20 grams in 1909. This letter scale is therefore most likely from before 1911. The letter scale is 228 millimeters high.
Below some more pictures of this letter scale.