Offering this Albert Nestler No. 14X Slide Rule with mahogany body, plastic scales and aluminum framed glass indicator. The cursor frame is marked RGM No 400076 + No 17284, under center slide marked No 14 Albert Nestler LAHR (looks to be 1/C)then D R G M, on the back side there is a paper backing with calculations -marked on far right Nachdruck, Verboten. The case is a black two-part pasteboard inscribed, Albert Nestler No 14X DRB No 173660. Rule is in very good condition, no cracks or chips, no stains, indicator and slide work smoothly. Case has some wear on the black finish, some tape at ends, but very sturdy. A nice old rule for your collection and use!