Oughtred Society  

Slide Rule Info
History of SRs
Beginners Guide
OS SR Ref. Manual
Links Library
SR Resources
Patent Data
Slide Rule Fun

SRs of the
   Major Makers

Classic SRs
Rare SRs
Long Scale SRs
Hyperbolic SRs
Electro SRs

About the OS
In Memoriam
Archive of Collections
OS Awards
OS Directors
Journal (JOS)
Journal Search
JOS Plus
OS Publications

Registration for the
Oughtred Society 2019 Annual Meeting
the weekend of April 20, 2019 at
the National Atomic Testing Museum,
Las Vegas, Nevada

Hotel Accomodations:

A block of rooms has been reserved at the Four Points by Sheraton Las Vegas East Flamingo at a flat rate of $102/night (plus tax)for Friday and Saturday nights. A limited number of rooms have been set aside, so early reservations are recommended. See below for details. The hotel will hold the rate until March 15, 2019 at 5 PM Nevada time. Note: Cancellations after March 15 may result in a one night charge! Exact instructions from the hotel for obtaining the special $102 rate for the OS are: Dial 702-473-6400, select Reservations (option 1). Say "Booking for the Oughtred Society Meeting 2019 at $102 rate". The Four Points hotel is located 1.3 miles from the Las Vegas Strip at 4055 Palos Verdes Street, Las Vegas 89119 and is located across Flamingo Ave. from the Atomic Testing Museum, within easy walking distance. This hotel does have shuttle service to the airport. There is city bus service on Flamingo Road, so those without a car could easily get to the Las Vegas Strip without walking far. McCarran Airport is located a very short taxi ride away, so again a car is not necessary. (It should be noted that the mega-sized hotels may appear to be close together - but they can be a long walk apart!).

An optional welcome dinner will be held Friday evening at the hotel in a private room with a fine selection of food supplied by Buca di Beppo Italian Restaurant. In addition, after the meeting on Saturday an optional "wrap-up" dinner will be held at the hotel in a private room. These dinners have been popular at past meetings with lots of interaction and discussions! Please reserve for each dinner by March 15, 2019 so that we can get the food ordered and the space reserved.

All attendees are encouraged, but not required, to bring slide rules and/or calculators to display and to sell or trade. See the FLYER for some examples of items that have been offered for sale or auction at the previous meetings. This is an opportunity to enhance your collection, learn from fellow collectors, enjoy a unique slide rule experience, renew friendships and make some new friends!

Some of the items to be auctioned off this year include:

From the Otnes collection:

  • K&E Model 4081-5 Log Log Duplex Decitrig, with green case
  • Dietzgen 20 inch Mannheim, with bottom edge L scale, w cursor and leather case
  • George Richardson Celluloid and Brass Artillery "Slide Rule of 1917"
  • Dennert and Pape early 20-inch Mannheim Slide Rule, w cursor, slight celluloid damage
  • Bone 4-fold rule, marked Rabone and Keuffel and Esser
  • Bone 2-fold rule engineering rule, unsigned
  • Ewart's Cattle Gauge, boxwood with bone scale
  • British Thornton, AD-070 Modern Maths Slide Rule, with plastic case
  • UTO Model 603 Slide Rule, Denmark
  • ...and many more!
  • From Richard Davis' collection:

  • Dempter model AA with magnifier and case
  • Thornton Admiralty Blackbody
  • Pickett Executive X-3 and X-4 (both NIB)
  • Aristo 615 Aviat
  • Spectro-Rule Spectrometer Slide Rule
  • In addition, Louis Gotlib is going to bring 30 copies of Aaron Lerner's self published Thacher's manual to give away.

    Event Schedule

    Friday, April 19, 2019.

    Optional welcome dinner will be held Friday evening at the hotel in a private room with a fine selection of food supplied by Buca di Beppo Italian Restaurant. Dinner will start about 6:00 pm

    Saturday, April 20, 2019.

    The Atomic Testing Museum -- In Association with the Smithsonian Institution 755 East Flamingo Road Las Vegas, NV 89119

    8:00 -8:45 Room opens, Set up displays, Coffee and muffins provided; Introductions and Individual Discussion Time.
    8:45 - 10:00 Circulate, View displays, Meet collectors, Exchange ideas, Evaluate items for sale, Tour Museum if desired. (No sales until after the auction.)
    10:00 - Presentation #1 25 minutes, 5 minutes questions
            Marion Moon: The Dixon Hyp-log Rule (built in 1855!)
    Dixon Hyp-log Rule 1855
    10:30 - Presentation #2 5 minutes, 5 minutes questions
            Bob Koppany will talk about Roebling and Sons (Builders of the
            Brooklyn Bridge and the Niagara Falls Suspension Bridge)
    10:40 - Presentation #3 15 minutes, 5 minutes questions
            Peter Holland will talk about a small German company which made some slide rules they called "Logomat". Peter will introduce two Logomat models to US collectors: The Logomat 2001 is probably the smallest circular slide rule ever made; and the Logomat 2300 comes with a set of exchangeable disks with scales and a magnifying half cylindrical cursor. Here are two links to give you a first impression:


    11:00 - 12:00 Auction Items Sign Up, Discussion Time
    12:00 - 1:30 Break for lunch (see Lunch Options below); Walk across the street. Museum security will be present and the meeting room will be locked during our absence.
    1:30 - 2:15 Annual Meeting and Electin of Officers
    2:15 - 2:30 Break (refreshments will be provided)
    2:30 - 4:00 Auction of items.
    4:00 - 4:30 After Auction Sales (begins right after auction ends)
    4:30 - 5:00 Tear Down and Clean Up.
    5:00 - Vacate Room.
    6:00 - Optional Dinner - held at 6:00 PM Friday, 6:30 PM Saturday at an OS Private Room, Four Points by Sheraton, 4055 Palos Verdes Street, Las Vegas (almost directly across from the Museum), with another fine selection of food supplied by Buca di Beppo Italian Restaurant (note new starting times!).

    Meeting Registration

    The registration fee is $75 per person, spouses are free, which will cover refreshments, the meeting room rental fee, and incidental expenses. If a non-spouse family member or friend will be attending the Saturday meeting and or itself, each person should be registered. No registration fee is required for those attending only the optional events on Friday or Saturday.

    Paying by PayPal:

    Use the drop down menu to register, then click the Add to Cart button. Several options are provided in case attendees have other evening plans, If you have friends wanting come to the dinner, but not the meeting, they need to register separately, using one of the options. You will have the opportunity to continue shopping to renew your membership, buy past Journals, books, etc.

    OS Spring Meeting Registration Las Vegas, NV

    Upon receipt of your registration, we will send you an Email of acknowledgement. Later, as earlier noted, we will inform you by email about other meeting-related and optional activities. Also, well before the meeting, we will send you a packet of additional information.

    Or, Paying Directly by Check (use the Paypal button to see total cost):

    To pay by check, send a payment to:

    The Oughtred Society
    9 Stephens Ct.
    Roseville, CA   95678

    Cancellation: Registration can be cancelled without penalty before March 19, 2019. No refunds, however, after that date.

    Las Vegas Area Sights and Events: As if the great meeting weren't enough to attract Oughtred Society members, there are many other attractions in the Las Vegas area to add to your meeting weekend or for an extended vacation. Download this
    List of Attractions. (223Kb PDF).


    Click here to contact us
    About this site.
    last modified April 19, 2019