letter scale Arca 1000
This letter scale was made by Jakob Maul. It is the middle version in a range of scales with the name Arca. The capacity in grams is worked up in the name: this is the Arca 1000. The lighter versions are the Arca 125 and the Arca 500. The heavier model is the Arca 2000. Even a 10 kilo version exists. The scale has a chart in grams and in ounces. The chart is made of aluminum. The bottom is covered with a cardboard on which a soft foam layer is glued. The scale mechanism has a tension spring. The spring tension can be adjusted with the nut placed on top of the housing. The chart of 1000 grams shows a stripe per each gram up to 60 grams. Above 60 grams a stripe per ten grams is given. The chart in ounces has a stripe per eighth part of an ounce up to two ounces. Above two
