A number of these manuals are available for download.

	Instructions for using Trig and Log Log Slide Rules This manual came with a ACU-MATH No. 150 slide rule and has two crease lines from being stored for a long period. Editor: Ross R. Middlemiss Copyright Date: not listed Pages: 16 Condition: Fair
	Instructions for using Mannheim Slide Rules This manual came with a ACU-MATH No. 500 slide rule although the cover refers to this as No. 44. This may have been the catalogue number for the instruction manual as the last page refers to No. 44P for 5" Pocket Mannheim Rules and No. 13 for Log Log Decimal Trig Rules. Editor: Not stated Copyright Date: not listed Pages: 16 Condition: Fair
	Instructions for using Mannheim Slide Rules This manual came with a ACU-MATH No. 511 slide rule although the cover refers to this as No. 44. This may have been the catalogue number for the instruction manual as the last page refers to No. 44P for 5" Pocket Mannheim Rules and No. 13 for Log Log Decimal Trig Rules. Editor: Not stated Copyright Date: not listed Pages: 16 Condition: Fair
	Instruction Manual for Bruning 2398 This manual came with a Bruning 2398 slide rule and is in fairly good shape after being folded for 40+ years. The manual has instructions for a range of basic functions and is quite easy to read and follow. Author: Not Stated Copyright Date: 1958 Pages: 31 Condition: Good, fold marks.
	Instruction Manual for BRUNING Slide Rule No. 2401 This manual came with a Bruning 2401 5 inch slide rule and has suffered somewhat from being stored for a long period. Author: unknown Copyright Date: 1944 Pages: 16 Condition: Poor
	Concise Circular Slide Rules No 28N Small circular slide rule manual. This particular manual came with a Concise 28N slide rule. Author: Not Stated Copyright Date: Not Stated Pages: 17 Condition: Good, center fold mark
	Instruction Manual for Hemmi 259D, 260 and 279D This manual came with a Hemmi 259D slide rule and is in fairly good shape after being folded for 30+ years. The manual has instructions for the Hemmi models 259D, 260 and 279D. Author: Not Stated Copyright Date: Not Listed but circa 1971 Pages: 48 Condition: Good, slight edge and folding damage
	Keuffel & Esser - The Polyphase Slide Rule - A Self Teaching Manual This manual came with a Keuffel & Esser 4054 Polyphase slide rule and though worn is in good shape. Author: William E Breckinridge Copyright Date: 1938, 1944 Pages: 83 Condition: Good
	Keuffel & Esser - Polyphase Duplex Trig Slide Rule - A Manual This manual is designed to be a self teaching manual for the K&E 4070 range of slide rules. All of the authors were listed as associate or assistant professors of mathematics at the US Naval Academy. Author: Lyman M Kells, Willis F Kern, James R Bland Copyright Date: 1939 Pages: 87 Condition: Good. Slight mark on cover.
	Keuffel & Esser - 4081 - Log Log Duplex Decitrig Manual This manual was written for the K+E 4081 series of rules but it covers most of the variations on that model, a number of these models can be seen at my Keuffel & Esser page. Author: Lyman M Kells, Willis F Kern, James R Bland Copyright Date: 1943 Pages: 102 Condition: Fair, name and slight marks on cover
	Keuffel & Esser - 4081 - Log Log Duplex Decitrig Manual This manual was written for the K+E 4081 series of rules but it covers most of the variations on that model, a number of these models can be seen at my Keuffel & Esser page. Author: Lyman M Kells, Willis F Kern, James R Bland Copyright Date: 1943, 1945, 1947, 1955 Pages: 126 Condition: Good, slight fold mark
	Keuffel & Esser - Deci-Lon - An Instruction Manual This manual was written for the 68 1100 - Deci-Lon slide rule. This was effectively the top of the range general purpose slide rule produced by K&E prior to ceasing slide rule production. Author: Not Stated Copyright Date: 1962 Pages: 186 Condition: Good. Some wear to cover edges.
	Instructions for the use of your Lutz Slide Rule This manual came with a Lutz 252 and is in fairly good shape after being folded for 30 odd years. The manual has instructions for the Lutz models 151 and 252. As this rule was made by Relay/Ricoh, the manual could be used for these rules as well. Author: unknown Copyright Date: not listed Pages: 35 Condition: Fair, folded and slightly marked on the cover.
	How to Use Pickett 400 Business Slide Rules This manual came with a Pickett N400-ES slide rule and is in fairly good shape after being folded for 30+ years. The manual has instructions for a range of basic functions as well as for the specialist markup and business ratios. Author: Dr E Justin Hills Copyright Date: Not listed but all illustrations are of pre 1950 type rules. Pages: 22 Condition: Good, crease in middle from being folded.
	How to Use Pickett 400 Business Pocket Slide Rules This manual came with a Pickett 400 slide rule and is in fairly good shape after being folded for 40+ years. The manual has instructions for a range of basic functions as well as for the specialist markup and business ratios. This manual is the same as another version I have except it is in a smaller format with a paper cover whereas the other is larger and has a cardboard cover, refer to the above manual. Author: Dr E Justin Hills Copyright Date: Not listed but all illustrations are of pre 1950 type rules. Pages: 22 Condition: Good.
	Pickett - Model 500 Ortho-Phase Log Log Manual This manual came with a Pickett 500 and the cover has suffered after being folded for almost 50 years. Author: Maurice L. Hartung Copyright Date: not listed Pages: 64 Condition: Fair
	Pickett - How to use Trig Slide Rules This manual came with a Pickett N902-T and is in fairly good shape after being folded for 30 odd years. Author: Maurice L. Hartung Copyright Date: 1960 Pages: 48 Condition: Good
	Pickett - How to use Trig Slide Rules This manual came with a Pickett N902-ES and is in fairly good shape after being folded in the case for many years. This is an updated version of the above manual and is basically unchanged except for the cover artwork. Author: Maurice L. Hartung Copyright Date: 1960 Pages: 48 Condition: Good
	Pickett - How to use Trig Slide Rules This manual came with a Pickett N200-T and is in fairly good shape after being folded in the case for many years. This is an updated version of the above manual and is basically unchanged except for the cover artwork and some additional examples which has increased the length. Author: Maurice L. Hartung Copyright Date: 1960 Pages: 64 Condition: Good
	Pickett - How to use Dual Base Log Log Slide Rules This manual came with a Pickett N803-ES and is in fairly good shape after being folded in the case for many years. Author: Maurice L. Hartung Copyright Date: not listed Pages: 96 Condition: Good
	Pickett - How to use Log Log Slide Rules This edition of this manual is slightly older than the one below. They seem to share the same copyright date but this version has only 64 pages and less information than the leter edition. Author: Maurice L. Hartung Copyright Date: 1953 Pages: 64 Condition: Mint
	Pickett - How to use Log Log Slide Rules This manual came with a Pickett N600-ES and is in mint shape as it has been stored flat in the storage box. Author: Maurice L. Hartung Copyright Date: 1953 Pages: 96 Condition: Mint
	Pickett - Elementary Simplex Math Slide Rule This manual accompanied a Pickett N901-ES slide rule. This model was used for teaching simple mathematics and slide rule use in elementary school. Author: Maurice L. Hartung Copyright Date: 1965 Pages: 47 Condition: Good. Fold marks.
	Pickett - How to Use Basic Slide Rules This manual was written for the Microline series of student rules. This particular manual came with a Pickett Microline 120-ES. Author: Professor Maurice L Hartung Copyright Date: Not Stated Pages: 16 Condition: Good, slight fold mark
	Pickett - How to Use The N16 Electrolog Slide Rule This manual was written for the Pickett N16 Electrolog (AKA Electronic) series of rules. Author: Not Known Copyright Date: Not Stated Pages: 60 Condition: Good, some cover marks
	Post - Versalog - Slide Rule Instructions Comprehensive manual from the Frederick Post company which was written for the Versalog series of slide rules. Author: E I Fiesenheiser Copyright Date: 1951 Pages: 115 Condition: Two slight dings on the base of the cover, other than that this manual is in mint condition with no yellowing of the pages or other marks inside. It looks unused.
	Post/Hemmi - Instructions This manual's cover lists a range of Post Slide Rules but this is the only reference to Post in the entire manual, all the references inside the manual refer to Hemmi rules, including all the diagrams and illustrations. Author: Not Stated Copyright Date: Not Stated Pages: 51 Condition: Fair. The manual is worn and has a fold crease, some marks on cover.
	Relay - Instructions Manual which came with a Relay 153 Duplex slide rule. This manual also contained a catalogue of "Relay" bamboo rules which details the model number and the scales for each rule. Author: Not Stated Copyright Date: Not Stated Pages: 30 Condition: Fair. The manual is worn and has a crease from being folded and stored in the box for many years.
	BA Simm - Slide Rule Manual This manual was written as a general purpose slide rule manual but it was published for W & G and many of the illustrations are of their W & G Comprehensive 432. In addition the Model 443 (Artillery) is shown. This text covers the standard functions as well as some special scales available on that rule for solving electrical problems. Author: B A Simm Copyright Date: Not stated Pages: 50 Condition: Good, slight mark on cover, watermark
	Sterling - Decimal Trig Log-Log - Slide Rule Instruction Manual Instruction Manual for the Sterling Decimal Trig Log-Log slide rule. Editor: Murray I. Lieb, M.S. Copyright Date: not listed Pages: 11 Condition: Has been folded in storage for some time, slight watermark on cover.