File:Russian circular slide rule (model KL-1).jpg - Wikimedia Commons
Powerhouse Collection - Slide rule KL-1
My KL-1 circular slide rule I bought off of Ebay : r/Sliderules
Engineer Logarithmic Mathematical Circular Slide Rule KL-1 Calculator USSR Works | eBay
Vadim Vintage on X: "This Vintage Logarithmic Slide Rule Circular KL-1 Aviation Calculator 1960s is Sold, he flies to South Portland, United States. #eBay #Sold #SouthPortland #ME #UnitedStates #USA #Vintage #Logarithmic #Logarithm #
Russian Circular Slide Rule | National Museum of American History
Vintage Soviet circular slide rule KL-1 USSR Calculator Mathematical instrument | eBay
Calculator collection KL-1
Soviet Era Slide Rules
Soviet Era Slide Rules
Vintage Circular Slide Rule KL-1 Soviet Calculating Device | Etsy | Slide rule, Vintage clock, Circular
Military Engineer Logarithmic Mathematical Circular Slide Rule KL-1 USSR BAXMUT1 – The Match Guy
Circular slide ruler | Just BASIC Community Forum
Vintage Soviet Circular Slide Rule 1965USSR Calculatorsoviet - Etsy
The Appeal of Slide Rules - For Use and as Collectables.
calculator museum russian watch KL1
Vintage Soviet Circular Slide Rule KL-1 USSR Calculator Mathematical I – It's Vintage Time
Soviet KL-1 Slide Rule
Soviet KL-1 Slide Rule
.JPG "Soviet KL-1 Slide Rule")
Soviet KL-1 Slide Rule
Engineer Logarithmic Mathematical Circular Slide Rule KL-1 Calculator USSR 1960 | eBay
Engineer Logarithmic Mathematical Circular Slide Rule KL-1 Calculator USSR 1966 | eBay
Vintage Russian KL-1 Logarithmic Mathematical Circular Slide Rule 1960's | eBay
Rare Logarithmic Mathematical Circular Slide Rule KL-1 Calculator 1917-1967 | eBay
Calculator collection KL-1
