1950 K&E N9801-3 (4801) DORIC SLIDE RULE -LEATHER CASE-IMMACULATE CONDITION

Description

ATTN COLLECTORS: The condition of this K&E slide rule is incredible, even considering that it was made c. 1950.
It looks like it was rarely if ever used. Not a mark on it. And the case looks almost new too. I have never seen one in this condition.
It is a rare Model N9801-3 which is a development of the 4801 series of the
log log
duplex decitrig
type. It is a 10"  plastic rule. Serial number is 64443.
Suitable for use or a museum collection.