Two Vintage Caterpillar Advertising Fobs

Updated August 7, 2026

A lot of two mid-century promotional fobs for Caterpillar. One fob depicts a tracked bulldozer, while the other features a motor grader and is marked 'CATERPILLAR / REG. U.S. PAT. OFF.'. The motor grader fob is stamped on the reverse 'SPIES IND / W.H.MPLS. MINN.', indicating manufacture by Spies Industries of Minneapolis, Minnesota. Both are made of cast metal with an antiqued silver-tone finish and integral suspension loops.<br><br>Caterpillar CAT Bulldozer Motor Grader Heavy Equipment Construction Advertising Fob Spies Industries Minneapolis<br><br>Dust Factory Auctions offers antique and vintage items that proudly display the natural signs of their age and previous use. We strive to photograph all lots clearly to show the true nature of the items (as images are critical to the description), but please understand we may occasionally miss flaws. For this reason, all items are sold "as-is"; we provide no guarantee or warranties concerning their condition, authenticity, or age. We strongly encourage you to review all photos closely and do your own independent research, as your bid signifies acceptance of these terms.

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