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Koch, Huxhold & Hannemann (KHH) - made surprising System Korte slide rule that does addition & subtraction
Smallwood Folding Shoe Sizing Stick in metric for French shoe sizes 10-48 in increments of a Paris point (⅔ cm)
Lawrence MIT Antenna slide rule for radar antenna performance was classified during WWII by UK & US governments
ALRO-made ruler unusually with a cursor for analysing ECG printouts of the cardiac Sinus Rhythms
Hatters Gauge - for measuring the size of a hat but unusually calibrated in metric & imperial
Glovers Rule - for measuring the length of a glove in imperial inches
Unusual non-logarithmic QR 41 military model by Dennert & Pape (D&P) for training anti-aircraft gunners
Colour combinations slide rule made by German WH-Wohnen for Interior Designers
Professor Fuller’s Drum Calculator from 1878 - made by W.F. Stanley
Modern wristwatch with slide rule bezel calculator made by German maker Kienzle
Ruxton made Multi-Vider combined drop-lead pencil & slide rule
Rare Otis King Model N for Retail & Monetary with white scales (422 & 424) on a black background
Darnley’s Rotable Lightning Calculator/Pencil Case calculating aid
Makeba made Kombinator combination pencil & slide rule
Rare Carbic-made Fischer Calculator slide rule
Specialist slide rule for a national home cable radio broadcasting system offered in The Netherlands from 1930 to1970
Smallest drum (≈ 2.4m) made by renowned Swiss maker LOGA

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Interested in finding out more out about such calculating wonders? Then try one of the slide rule related articles (often light-hearted) I have published.
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Search results: Click on any Model listed in the leftmost column (or its image) for the full specification OR hover over its "Thumbnail" image (if shown) for a pop-up enlargement

You searched for: AWF (Ausschuss fuer Wirtschaftliche Fertigung)

Model	Type	Material	Comments	Thumbnail
SR 701	Machining Time poly-slide (2) - early	cardboard/plastic	made by Hans Seehase to design (1928-1930) by Friedrich Bahlecke - table of factors on back
SR 702	Belt Performance & Belt Speed poly-slide (2)	cardboard/plastic	made by Hans Seehase to design (1928-1930) by Friedrich Bahlecke
SR 704	Load Capacity of Springs	cardboard/plastic	made by Hans Seehase to design (1930) by Friedrich Bahlecke - often used in combination with its SR 705 sibling
SR 710	Bowing/Bending of Beams (metal or wood) poly-slide (2)	cardboard/plastic	made by Hans Seehase to design (1931) by Friedrich Bahlecke - bottom scale = pictograms + Moment of Inertia table of constants on back
SR 715	Rivets for Steel Construction	cardboard/plastic	made by Hans Seehase to design (1931) by Friedrich Bahlecke & R. Jacki
SR 722	Water Line Capacity	cardboard/plastic	made by Hans Seehase to design (1934) by Helmut Lummert & Friedrich Bahlecke - according to Lummert formula
SR 726	Gas Pipe Line Calculator for High & Low Pressure poly-slide (2)	cardboard/plastic	made by Hans Seehase to design (1936) by Helmut Lummert - SG & Conversion tables on back
SR 751	Blank but with hand-drawn scales for Machining	cardboard/plastic	made by Hans Seehase - now part of the impressive AWF collection of fellow collector Karl Kleine