Site.KeuffelAndEsser1908 History
Hide minor edits - Show changes to markup - Cancel
http://meta-studies.net/pmwiki/uploads/K&E1908.jpg
~1928: K & E 4088–3 s/n 348119 Slide Rule
Keuffel and Esser produced slide rules from 1881 right through to 1975. Prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or a metal framed cursor. This cursor on this slide rule is made of glass held by plastic cursor blocks and appears to be from ~1928. 1
1 The estimate is made on the basis that “serial numbers started in 1924 beginning with 0 and going through 999999 then rolling over to 0 again” and “in general the production rate was about 70,000 rules per year until the 1950s.” Clark McCoy, Mccoys-kecatalogs.com “Dating K&E Slide Rules”. See also K&E 4088-3 —— 1913-1921 Scale Set (viewed 12 July 2012) (↑)
Keuffel and Esser produced slide rules from 1881 right through to 1975. Prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or a metal framed cursor. This cursor on this slide rule is made of glass held by plastic cursor blocks and appears to be from ~1928. [^The estimate is made on the basis that “serial numbers started in 1924 beginning with 0 and going through 999999 then rolling over to 0 again and in general the production rate was about 70,000 rules per year until the 1950s.
Clark McCoy, Mccoys-kecatalogs.com “Dating K&E Slide Rules”. See also K&E 4088-3 —— 1913-1921 Scale Set (viewed 12 July 2012)^]
Keuffel and Esser produced slide rules from 1881 right through to 1975. Prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or a metal framed cursor. This cursor on this slide rule is made of glass held by plastic cursor blocks and appears to be from ~1928. 1
1913–21: K & E 4088–3 1913–1921 s/n 348119 Slide Rule
Keuffel and Esser produced slide rules from 1881 right through to 1975. However, prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or a metal framed cursor. This cursor on this slide rule is made of glass held by metal cursor blocks and appears to be from 1913–21. 2
From the K&E catalogue of 1906, p. 3253:
~1928: K & E 4088–3 s/n 348119 Slide Rule
Keuffel and Esser produced slide rules from 1881 right through to 1975. Prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or a metal framed cursor. This cursor on this slide rule is made of glass held by plastic cursor blocks and appears to be from ~1928. [^The estimate is made on the basis that “serial numbers started in 1924 beginning with 0 and going through 999999 then rolling over to 0 again and in general the production rate was about 70,000 rules per year until the 1950s.
Clark McCoy, Mccoys-kecatalogs.com “Dating K&E Slide Rules”. See also K&E 4088-3 —— 1913-1921 Scale Set (viewed 12 July 2012)^]
1908: K & E 4088–3 1913–1921 s/n 348119 Slide Rule
1913–21: K & E 4088–3 1913–1921 s/n 348119 Slide Rule
1 The estimate is made on the basis that “serial numbers started in 1924 beginning with 0 and going through 999999 then rolling over to 0 again” and “in general the production rate was about 70,000 rules per year until the 1950s.” Clark McCoy, Mccoys-kecatalogs.com “Dating K&E Slide Rules”. See also K&E 4088-3 —— 1913-1921 Scale Set (viewed 12 July 2012) (↑)
2 Clark McCoy, Mccoys-kecatalogs.com “Dating K&E Slide Rules” and K&E 4088-3 —— 1913-1921 Scale Set (viewed 12 July 2012) (↑)
3 Clark McCoy Mccoys-kecatalogs.com “Slide Rule Section of the 1906 K&E General Catalog” (viewed 12 July 2012) (↑)
1908: K & E 4088–3 22 Dec 1908 s/n 348119 Slide Rule
Keuffel and Esser produced slide rules from 1881 right through to 1975. However, prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or the metal framed cursor possessed by this slide rule. An all glass cursor was introduced in 1915. 1
1908: K & E 4088–3 1913–1921 s/n 348119 Slide Rule
Keuffel and Esser produced slide rules from 1881 right through to 1975. However, prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or a metal framed cursor. This cursor on this slide rule is made of glass held by metal cursor blocks and appears to be from 1913–21. 2
20-INCH RULES
4088 Duplex Slide Rule, 20 in. with trig. scales, metal Indicator, in case, with Directions. $19.00
1 Clark McCoy, Mccoys-kecatalogs.com “Dating K&E Slide Rules” (viewed 12 July 2012) (↑)
2 Clark McCoy, Mccoys-kecatalogs.com “Dating K&E Slide Rules” and K&E 4088-3 —— 1913-1921 Scale Set (viewed 12 July 2012) (↑)
Keuffel and Esser produced slide rules from 1881 right through to 1975. However, prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or the metal framed cursor possessed by this slide rule. An all glass cursor was introduced in 1915. 1
From the K&E catalogue of 1906, p. 3252:
Keuffel and Esser produced slide rules from 1881 right through to 1975. However, prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or the metal framed cursor possessed by this slide rule. An all glass cursor was introduced in 1915. 3
From the K&E catalogue of 1906, p. 3254:
Keuffel and Esser produced slide rules from 1881 right through to 1975. However, prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or the metal framed cursor possessed by this slide rule. An all glass cursor was introduced in 1915. 5
From the K&E catalogue of 1906, p. 3256:
Keuffel and Esser produced slide rules from 1881 right through to 1975. However, prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or the metal framed cursor possessed by this slide rule. An all glass cursor was introduced in 1915. 7
From the K&E catalogue of 1906, p. 3258:
From the K&E catalogue of 1906, p. 3259:
Keuffel and Esser produced slide rules from 1881 right through to 1975. However, prior to 1906 the slide rules either had no cursor, a brass chisel type cursor, or the metal framed cursor possessed by this slide rule. An all glass cursor was introduced in 1915. 10
From the K&E catalogue of 1906, p. 32511:
From the K&E catalogue of 1906, p. 325:
20-INCH RULES
From the K&E catalogue of 1906, p. 32512:
20-INCH RULES
(Case and directions are missing).
(Case and directions are missing).
1 Mccoys-kecatalogs.com “Dating K&E Slide Rules” (viewed 12 July 2012) (↑)
2 Mccoys-kecatalogs.com “Slide Rule Section of the 1906 K&E General Catalog” (viewed 12 July 2012) (↑)
3 Clark McCoy, Mccoys-kecatalogs.com “Dating K&E Slide Rules” (viewed 12 July 2012) (↑)
4 Clark McCoy Mccoys-kecatalogs.com “Slide Rule Section of the 1906 K&E General Catalog” (viewed 12 July 2012) (↑)
5 http://www.mccoys-kecatalogs.com/Dating.htm|Mccoys-kecatalogs.com “Dating K&E Slide Rules”]] (viewed 12 July 2012 (↑)
6 Mccoys-kecatalogs.com “Slide Rule Section of the 1906 K&E General Catalog” (viewed 12 July 2012 (↑)
7 Mccoys-kecatalogs.com “Dating K&E Slide Rules” (viewed 12 July 2012) (↑)
8 Mccoys-kecatalogs.com “Slide Rule Section of the 1906 K&E General Catalog” (viewed 12 July 2012) (↑)
9 Mccoys-kecatalogs.com (viewed 12 July 2012 (↑)
10 http://www.mccoys-kecatalogs.com/Dating.htm|Mccoys-kecatalogs.com “Dating K&E Slide Rules”]] (viewed 12 July 2012 (↑)
11 Mccoys-kecatalogs.com “Slide Rule Section of the 1906 K&E General Catalog” (viewed 12 July 2012 (↑)
12 Mccoys-kecatalogs.com (viewed 12 July 2012 (↑)
Description to be added
From the K&E catalogue of 1906, p. 325:
20-INCH RULES
4088 Duplex Slide Rule, 20 in. with trig. scales, metal Indicator, in case, with Directions. $19.00
(Case and directions are missing).
http://meta-studies.net/pmwiki/uploads/K&E1908.jpg
Picture and description to be added
Description to be added
1908: K & E 4088–3 22 Dec 1908 s/n 348119 Slide Rule
1908: K & E 4088–3 22 Dec 1908 s/n 348119 Slide Rule
1908: K & E 4088–3 22 Dec 1908 s/n 348119 Slide Rule
Picture and description to be added