Slide Rules of the Major Makers

ALRO

List 1. Catalogue (number/name, type, and size) of all circular rules. No photos.
List 2. Catalogue (number/name, type, and size) of all linear rules. No photos.

Blundell-Harling

List 1. Catalogue (dates, name, size & scale layout) of all models in all standard ranges. No photos.
List 2. Catalogue (number, customer, use) of all Specially Commissioned models. No photos.

Dargue-Simplon

List 1. Catalogue (name, type & scale layout) of all models from the Sub-Ivory range. No photos.
List 2. Catalogue (name, type & scale layout) of all models from the Honduras range. No photos.

Dennert & Pape/Aristo

List 1. Complete list of D & P models prior to 1935, with limited information for each rule. No photos.
List 2. Complete list of Aristo models after 1935, with limited information for each rule. No photos.
Also partial Archive (279 models) with photos.

Dietzgen

Cross reference. Complete list of models, with detailed information for each rule. No photos.
Babcock Dietzgen Matrix Cross reference matrix of Dietzgen rules.

Faber-Castell

List 1. Complete list of models prior to 1935, with limited information for each rule. No photos.
List 2. Complete list of models after 1935, with limited information for each rule. No photos.
Also partial Archive (347 models) with photos.

Graphoplex

Archive Catalogue of the range of Graphoplex Rules with photos.

Keuffel & Esser

Cross reference. Complete list of models, with detailed information for each rule. No photos.
Also partial Archive (283 models) with photos.

Lawrence

List 1. Catalogue (type, scale layout & use) of all models from the Imperial range. No photos.
List 2. Catalogue (type, scale layout & construction) of all models from the Metric range. No photos.
List 3. Catalogue (type & contents) of all models from the Set range. No photos.
List 4. Catalogue (size, name & usage) of all models from the Specially Commissioned range. No photos.
List 5. Catalogue (retailer & model) of all models from the Original Equipment Manufacturer (OEM) range. No photos.

Nestler

List 1. Complete list of models prior to 1955, with limited information for each rule. No photos.
List 2. Complete list of models after 1955, with limited information for each rule. No photos..
List 3. Complete list of known circular models, with limited information for each rule. No photos.

Pickett

Cross reference. Complete list of models, with detailed information for each rule. No photos.

Post

Archive 1. Chart listing all Frederick Post slide rules by model number and year sold.
Archive 2. Sphere Research Slide Rule Site / POST Archive.

Sun Hemmi

Archive 1.Complete list of models, with photo and detailed information for each rule.
Archive 2. List of models with no known model numbers.

Unique

List. Catalogue (number/name, type, size & scale layout) of all linear models. No photos