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ITG "Ritz"

Description
The first ITG slide rules were produced in the beginning of 1950s. One type was based on System Rietz, almost identical to Faber-Castell's model 1/87. The printed and polished paper sheets were glued on the wooden body and the slide. The window was similar to the Gamma-models but it has indices only on the front. The manufacturer's markings are in the stock. Note the misspelled "Ritz" word.
Manufacturer:Iskolai Taneszközök Gyára (Hungary)
Mfg. date:1951-53
Size:291×43×14 mm
Purpose:iskolai standard slide rule
Material:body: wood
scales: polished cardboard
Scale length:25 cm (10-inch)
Scale order:Rietz
front: cm / K Ah | Bh CIh Ch | Dh L / 1:25
back: | S ST T |
Window:plastic with 3 indices



ITG "Ritz"
Further readings
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