View source for File:Roebling Alligator tractor - DM-SN-82-02381.jpeg

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|Description || A right side view of the Roebling Alligator tractor as it sits in a field. The tractor is a Donald Roebling creation and is the vanguard for the present Marine LVTP-7 tracked landing vehicle
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|Source || [https://catalog.archives.gov/id/6348247 National Archives Catalog]
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|Date || Unknown, sometime prior 1941
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|Author || Unknown
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|Permission || Public Domain
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[[Category:Historical photos]]