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KL-1 circular slide rule USSR SOVIETORIGINAL COMPLETE ENGINEERING SETKL-1 circular slide rule USSR• Original complete engineering set
• KL-1 mechanical calculating instrument
• Original box included
• Printed English instruction manualPrecision mechanical logarithmic calculator used in engineering applications.Authentic USSR production. Clean, intact condition with smooth mechanical operation.Fully functional mechanical instrument. No electronics.Ideal for engineering collectors, technical archives and educational use.Worldwide shipping from Ukraine.• Carefully packed
• Tracked deliveryIdeal for engineering collectors, technical use and as a unique gift.
