Slide rule workshop J

Chris' mystery slide rule Nr. 4

Simple Slide Rule with no name

Click images for magnification

Data:

• Simple Slide Rule with no name
• Timber with plastic scale
• English text at back side (Slide rule data slips)

Question:

1. Name?
   “Slide rule data slips” seems to be common for Koch, Huxhold & Hanneman(KHH), and a few Frederick Post rules Andries de Man
   The Slide Rule Data Slips title of the paper table on the back is perhaps a clue being reminiscent of an early (circa 1917) Nestler Mannheim (no model number) but made by D&P. David Rance