Memberships are annual and automatically renew on the anniversary date. Memberships can be cancelled at any time, however no partial year refunds will be made.

ACMOC does not sell its membership lists to third party vendors but may make your information available to other members upon approval.

Please note, it can take up to a week to process your membership.

Regular Member:

• Are those members who pay the full individual dues and shall be at least 18 years of age.
• Regular members are entitled to receive the club's Magazine by mail and have access to the online magazine. 
• Regular members shall have full voting rights.

Joint Member:

• is definied as another adult (over 18) living in the same home as a current ACMOC Member.   
• is entitled to all benefits of Club membership including voting in ACMOC elections
• does not receive a copy of the paper magazine.

A Junior Member:

• is an individual under the age of 18
• requires sponsorship by a current ACMOC Member.
• is entitled to all benefits of ACMOC membership including access to the Members' Area on the ACMOC site which includes online access to the ACMOC magazine and access to the Technical Library and all other member access.
• does not ireceive a copy of the paper magazine nor the right to vote in ACMOC elections.

(Please note that Junior members' contact information is not made available in the Membership Directory available to members online)

USA Standard Membership with paper magazine mailed to you.

Online Membership with magazine accessible through website.

International Membership with paper magazine mailed to you.

Junior Membership with magazine accessible through website.

Serial number PV, 1929 - 1932

The Caterpillar FIFTEEN was introduced in 1929 and was, in effect a larger version of the Caterpillar TEN, being mechanically very similar. The PV Caterpillar FIFTEEN is sometimes referred to as the “BIG” FIFTEEN to distinguish it from a later model Caterpillar FIFTEEN (“LITTLE” FIFTEEN) introduced in 1932 which was the direct descendent of the Caterpillar TEN.

The “Big” FIFTEEN was available in two widths or gauges of 40inches and 50inches (tracks center to center) as well as a High Clearance option. As with all other machines of the time, the color changed from grey to Hi-Way yellow in December 1931.

Photograph courtesy John Gaunt

The Caterpillar FIFTEEN also formed the basis of one of the earliest forms of grader, or motor patrol.

Photograph courtesy Galynn Ferris

The members here at ACMOC have a wealth of knowledge on Caterpillar machines and machinery.

Join today and you'll find digitized original manuals, historical photos, helpful members, and a wealth of information whether you already have a Caterpillar machine or are thinking of getting one, like the rest of us here at ACMOC, and trust us, you do need one.

The ACMOC Members Library contains Operation and Maintenance Instructions books, Parts Catalogs and Serviceman’s Reference Manuals, as well as links to YouTube videos showing detailed restoration of many popular tractors and some less popular ones!

Created by John Gaunt

There is no current survey

Serial number 3xxxxx, 1923 - 1925

The Caterpillar 10 ton was one of the original tractors in the Caterpillar lineup when the company was formed in 1925, along with the 2 TON and the 5 TON from HOLT and the model THIRTY and the model SIXTY from the Best line. The 10 TON came from the HOLT stable and was an updated version of the HOLT T-16.

Photograph courtesy John Gaunt

The 10 TON did not survive very long in the Caterpillar range as it was in direct competition with the SIXTY which was considered a more modern design and a much better tractor.

The members here at ACMOC have a wealth of knowledge on Caterpillar machines and machinery.

Join today and you'll find digitized original manuals, historical photos, helpful members, and a wealth of information whether you already have a Caterpillar machine or are thinking of getting one, like the rest of us here at ACMOC, and trust us, you do need one.

The ACMOC Members Library contains Operation and Maintenance Instructions books, Parts Catalogs and Serviceman’s Reference Manuals, as well as links to YouTube videos showing detailed restoration of many popular tractors and some less popular ones!

Created by John Gaunt