Incredibly rare, late 1800sā set of 4 heavy duty casters. Hard black rubber tread to be kind to your flooring by G.P. Clark Company of Windsor Locks, CT- the first to develop a rubber-wheeled caster.
Check them out on my website, along with all my other antique and vintage industrial caster and wheel offerings. And be sure to follow Iron Anarchy on Instagram for all the latest antique and vintage industrial caster offerings!