click zoom to display a high-res image
International TD-30 Crawler Tractor
Image
International TD-30 crawler tractor (TracTracTor) working to widen U.S. Highway 40 near Berthoud Pass in Colorado. The highway wound through the Rocky Mountains. The TD-30 was a pre-production model dispatched to the scene for a "field test" by International Harvester.
1961
International Harvester Company
Publication Information
Physical Description
Collection Information
Copyright Information
W012RU2
WHi 38794
Image
Digital Collections
Explore more than 100,000 collection items online through the Society’s digital collections. For over two decades, we’ve been scanning, photographing, and digitizing materials from our collections, creating a rich and growing digital archive that brings history closer to you.
The Wisconsin Historical Society offers an ever-growing digital collection. Digitized materials reflect the full range of items in the collections including photographs, letters, newsletters, films, posters, architectural drawings, menus, and ephemera.
Attribution
For a credit line: Wisconsin Historical Society, Creator, Title, Unique Identifier.
The Unique Identifier can be found at the top or bottom of the page for each item. The name of a downloaded file is NOT the unique identifier.
For bibliographic citations please consult the UW-Madison Libraries Citation Research Guide to ensure compliance with appropriate style guidelines.
Accessing Collections
The vast majority of the items in our collections are not online. The Society owns thousands of archival collections viewable in our Archives reading room. To view and conduct research in our collections, visit us in person.
International TD-40 TracTracTor and Grader
November 30, 1937
Road construction workers using an International TD-40 TracTracTor (crawler tractor) and an Adams Model 4 grader owned by the City of Signal Hill.
International TD-20 Crawler Tractor with Drott Shovel
1960
Color photograph of an International TD-20 crawler tractor (TracTracTor) with attached Drott shovel loader.
Men Work on a Crawler Tractor at Tractor Works
1959
Two men working on a crawler tractor (TracTracTor) at an International Harvester factory - most likely Tractor Works.
Crawler Tractors at IH Factory
1959
Elevated view of men walking among crawler tractors (TracTracTors) inside an International Harvester factory, possibly Tractor Works.
Clearing Trees with International TD-24 Crawler
1949
Construction worker clears trees along a hillside with an International diesel TD-24 TracTracTor (crawler tractor).
Crawler Tractors at Tractor Works
1959
Elevated view of a man walking down a dirt aisle between rows of International Harvester crawler tractors (TracTracTors) in a factory - most likely Tractor Works.