PRIOR
LETTER SCALE

This letter scale has only the three weight limits for sending letters on its scale: 20, 50, and 100 grams. The colored bands even indicate the allowed weight exceedance. This postal scale was supplied by Prior Weegtechniek from Alphen aan den Rijn, Netherlands. This Prior scale is a simplified version of the previously displayed letter scale, see the Hartner. As stated there this design can be found under the brandnames: Bizerba, Hartner, Maul, Pitney Bowes and as presented here Prior. It is an accurate letter scale with a fixed foot and two adjustable feet, and a spirit-level to establish a level scale. At the left side of the housing is an adjusting screw to put the pointer to zero. A red rotating knob at the bottom enables securing the mechanism during transport. Hidden centrally under the top plate is a chamber for lead pellets, this is used for fine tuning the letter scale at the factory. The adjusting foot at the right is not an original one.
Below some more pictures of this Prior letter scale.