K&E 4058 --- 10" Box Wood Mannheim Slide Rule with Original Box
Early Release of the 4058C
From the collection of Clark McCoy
This rule would appear to be an early release of the 4058C except it still has the name "Student's". The rule was probably produced between 1922 and 1925.
Complete kit with packing strap for rule
Packing strap partially installed
Closeups of cursor
Back of slide