letter scale
type C

maker J.S. Velthoen & Zn, the Netherlands
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letter scale, maker J.S. Velthoen & Zn.
letter scale type C
 

This Dutch letter scale is a true mail scale. The scale was used by the Dutch Royal Mail at their post-offices. Characteristic are the oil damper, the base with the spirit-level, the two leveling screws to level the scale. Three types of this model were made between 1950 and 1972. The range of type C, shown here, is 500 grams. Type A weighs up to 200 grams and the type B is made for a range up to 1000 grams. At the chart is written the weighing capacity, the name of the maker and the restriction: "uitsluitend bestemd voor weging van poststukken". This is translated: "strictly to be used for weighing postal articles". Also the year of making and an identification number are printed at the chart. An extensive article about the Velthoen scales was published in Meten & Wegen, number 115, September 2001, pp. 2740-2742. More information is given at the page of type B. Below some more pictures of details.
 

detail 1
box containing the oil damper
 
detail 2
suspended in ball bearings
 
detail 3
letter weighing pan
 
detail 4
firm PTT logo
 
detail 5
scale type C
 
detail 6
calibration plate
 
detail 7
year of making 1951
 
detail 8
quite a lot of figures
 
detail 9
attachment of pointer
 
detail 10
spirit level
 
detail 11
leveling screw
 
detail 12
rubber stop at leaf spring
 
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« collection part 9 «© copyright André Solversion: July 19, 2007