Seattle beds were typically beds that were first seen in, and around the Seattle Wa. area back in the day, built by shops, for their wreckers. Seeing how Ernest Holmes Company was on the East Coast side of the Country, the farther West you got, the fewer Holmes units you saw, with actual Holmes Service Bodies. customers would purchase wrecker bodies from outside Body Manufacturers, or would build them, themselves. Example of one below.
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Last edited by spanky; 07/14/2018 3:16 PM.

Spanky Hardy
Collector Of Fine Old G.M. COE Trucks & Antique Holmes Wreckers

1948 Chevrolet 5700 COE Holmes HD W35 Wrecker
In the Stovebolt Gallery
More pictures on Photobucket

1950 GMC 250 1-Ton
In the Stovebolt Gallery