letter scale

This letter scale does not have a patent number at the back of the standard. Yet, for sure it's an OEST.P.1766 letter scale, just like the OEST.P.1766, already shown before. More detailed information is presented there. The scale photographed here has a stripe of measure per each gram. The lower chart goes from zero up to 20 grams. The upper chart goes from 20 grams till 100 grams. Below some more pictures of this letter scale.