The K&E 68-1100 “Deci-lon” is another large slide rule with multiple scales on both sides. It was part of a third batch of slide rules I acquired in 2022. The fixed scales are Ln-3/Ln-2/Ln-1/Ln-0/D/DI/K on one side and Sq1/Sq2/DF/D/Ln0/Ln1/Ln2/Ln3 on the other side. The slider scales are CF/CIF/L/CI/C on one side and B/T/SRT/S/C on the other side. This slide rule also came with a case with a previous owner’s name written inside the flap.
Serial number: 049289
Dimensions: 32.4 cm x 4.9 cm x 0.5 cm
Discover more from Imablog
Subscribe to get the latest posts to your email.