The iPhone of Slide Rules Numberphile
It is American made and one of the most desired collectors item. This is K+E's late production flagship rule, with
unbreakable
cursor, Ivorite body and adjustable frame. The Deci-Lons is constructed on a plastic frame.
motor
fine
large
signed
black
dollar
front
case
silver
cover
french
light
german
disney
rare
vintage
mount
stainless
edition
storage
exclusive
family
duty
portable
organizer
glass
style
inner
engine
antique
gold
radio
heavy
limited
color
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