Vintage A.W. Faber-Castell 398 Electrical Engineer Slide Rule 31cm in Original Case

An iconic A.W. Faber-Castell 398 "Castell" slide rule, highly sought after by collectors and professionals alike. This model is specifically designed for electrical engineers, offering detailed scales and precision calculation tools.

Details:

• Model: A.W. Faber Castell 398

• Purpose: Electrical engineering slide rule

• Length: 31cm

• Width: 5.5cm

• Markings: 10Y, 10,000 circ.mil used for resistance and electrical conductance

• Cursor: Original glass cursor intact and functional

• Made in Bavaria

Case:

• Original brown leather slipcase

• Excellent fit and good condition with light wear

• No maker branding on case, but authentic to the item

Condition Notes:

• Slide rule is structurally sound with visible signs of use and ageing

• Markings still legible, although minor discoloration is present

• Cursor slides smoothly

• Case shows scuffs but no major structural damage

A classic and collectible engineering tool, perfect for vintage tech enthusiasts, slide rule collectors, or display in a retro technical office.