September–October 2019

July–August 2019
January 24, 2020
January–February 2020
January 24, 2020


2 The Model “R” Tractors Decoded
Digging Into The Serial Number Register
11 The 2510 and 2520 Tractors Decoded
Digging Into The Serial Number Register
26 Perspectives
Tree Fruit Production — Not Like Growing Row Crops — by Dan Resh
Sackett Sez… 2019 — A Year More Than Half Gone — by Lee Sackett
Hundertmark Collection — by Jack Cherry
Tractor Talk Shrunken Down — The Model “750” Tractors — by Doug Beaty
Regional Two-Cylinder Ambassador Program
John Deere 1:16 Scale Toy Replicas and Merchandise
John Deere Day Movies on DVD!
Products • Services • Suppliers
Classified Ads


A good way to look at the Model “R” is to mentally insert yourself into the past; into 1949, 70 years ago. As we look at the tractor today, it looks kind of like other big John Deere Diesels of the Two-Cylinder Era, but at the time there was nothing else like it. The “D” was much smaller and its styling was entirely different. Most of the rest of the lineup were row-crop tractors. The closest in appearance was the styled Model “AR”, but in comparison the “R” loomed over it.
This photo was taken by a Deere & Company photographer at one of the first Two-Cylinder Expos held at the Waterloo Airport.

Two-Cylinder (ISSN 0899-2258) is the official publication for members of the Two-Cylinder Club®, and is available to anyone interested in the preservation of John Deere Tractors and related products.

The Two-Cylinder Club was chartered in Iowa in 1985 as a nonprofit service, educational, and recreational organization; and extends an invitation of membership to individuals interested in the preservation of John Deere Tractors and Implements and their important role in our agricultural heritage.

Two-Cylinder magazine is published bimonthly by Two-Cylinder, Ltd., 618 G Avenue, Grundy Center, IA 50638. Periodicals postage paid at Grundy Center, Iowa, and additional mailing offices. Annual (non-refundable) subscription rates, which include membership in the Two-Cylinder Club, are: $40.00 U.S., $56.95* Canada, and $94.95* to all other foreign countries (*U.S. funds). Single issue price: $10. Send all subscriptions and inquiries to P.O. Box

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The information presented in Two-Cylinder is the result of considerable time and effort on the part of many dedicated individuals. However, it is recognized that the potential for error always exists, and this publication is no exception. Therefore, the publisher does not warrant or guarantee the information contained herein to be absolutely accurate, and accordingly, the publisher shall not be liable in regard to the use or reliance placed upon this information.

The images presented in Two-Cylinder are the property of several entities including Deere & Company, the Two- Cylinder Club, and private individuals. Each of the originating entities retains copyright of their photographs, materials, and documents.

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Copyright © 2019
Two-Cylinder Ltd.
Volume 32 • Number 5

All rights reserved.

Editorial Director
Jack Cherry
Publication Manager
Brenda Harrenstein
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