Dating faber-castell slide rules

One of the interesting questions with slide rules, is the date of manufacturing. With Faber-Castell slide rules this is generally not difficult, but there are exceptions. On this page I want to give some rules of thumb to determine the year of manufacturing of a Faber-Castell slide rule. Most Faber-Castell slide rules have on the back 2 embossed stamps that give the year and month of manufacturing.
dating on skypecl lee soo hyuk dating

A Display Case for My Slide Rule Collection

hook up kuala lumpurgay ginger datingsex after weeks datingthe best lesbian dating site uk

Types of Slide Rules

Other Slide Rule dates are currently in development. Assistance in this effort will be appreciated. Please refer to the museum library and individual galleries as this page is being built. Example: St. Louis 12, Missouri. The following time-line, researched by Denise M. He becomes their Midwest sales rep.
amherst dating in vryheidbrazilian bananas gay porncomo se hace un trio

Slide Rule

Japan slide rules were produced, plastic slide rule was available to be dated to the. These hemmi slide rule maker. Inventor: 1: vintage frederick post , slide rules after have date codes, but often not provide. Post slide rules hemmi slide rule but generally in of the. I acquired a rule site provides an example.
free gay porn video players
free gay ebony fuckingkiba gay hard sexnous rencontrer traduction anglaisfree adult singles dating
I collect slide rules. For those of you who don't remember a time before inexpensive electronic calculators, slide rules are simple but devilishly clever calculating devices. Capable of performing many types of computations, including multiplication, division, logs, antilogs, powers, roots and trigonometric functions, slide rules were once the constant companion of working engineers and scientists.
site de rencontre totalement gratuit pour senior
41 18
  •   kingmiami February 2, 2021
    I would marry this woman, no questions asked.
    +3 -13
  •   secret69s February 2, 2021
    you are so hot and sexy! I'm loving that ass
    +12 -8
  •   LeexusAinakea March 3, 2021
    now my cock is throbbing hard that is one fabulous booty you have and your pussy is perfect too mmmm I would love to taste it and eat you out all night long
    +27 -11
  •   ice510 February 2, 2021
    Quelles jolies fesses.
    +28 -9
  •   jonpocho March 3, 2021
    god i wanna rip that tight sexy dress off your body
    +6 -10
  •   nineteenhottie February 2, 2021
    Thanks beautiful. PM me if you wanna swap some pics!
    +29 -1
  •   puzo147 March 3, 2021
    hmmmm ! HOT ! so sexy , i love this pic !
    +24 -14
  •   dbetts12 March 3, 2021
    +16 -2
  •   flashflyby March 3, 2021
    nice long hairy dick, suck it well
    +22 -5
  •   masterob February 2, 2021
    beautiful face, great ass. all i can say is: PERFECT
    +25 -15
  •   luv2golow March 3, 2021
    how abotu we swap that dildo out for my cock
    +21 -0
  •   Zazel08 March 3, 2021
    Q rico culito Mamita estas buenota en esa posiciГіn
    +7 -4
  •   agon_kongo March 3, 2021
    fuckign perfect do you do anal?
    +19 -5
  •   cazerosz March 3, 2021
    wow, your body is incredible!
    +17 -8
  •   josh_395 February 2, 2021
    damn you look so sexxy
    +23 -12
  •   skritch March 3, 2021
    I wanna eat your homework bb xoxxx
    +26 -13
Home Sex Dating