Jean_LAMESCH_Sliderules_Collection_BOX_JL05

1671_CTM_PKH7_430

1671_CTM_PKH7_430

CTM PKH7 430 Soviet Artillery simplex sliderule, probably used in the USSR in the 1960's. Aluminium, 220mm diameter. The shiny circular blobs help to rotate the inner disc, making the finger contact more robust. This item has no marks of Model, manufacturer or other. Text is Cyrillic, with many formulas.