|Philipp Jacob Maul Concav Scale|
The distinctive Maul logo can be seen on this scale, which I believe is a Heavy Concav Quadrant Letter/Postal Scale. Stamped on the scale is "Voor Huishoudelijk Gebruik" which is Dutch for "For Domestic Use". The enamelled chart is concav positioned and has the CONCAV mark on it along with the Maul logo. It weighs items up to 500 grams, has a zero levelling screw and rotatable legs.