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"
