Detroit Craigslist: Vintage NOS Keystone centercaps
 

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https://detroit.craigslist.org/okl/p...939248341.html

Set of four vintage 1970s Keystone wheel center caps, in box. These die cast chrome wheel hubs fit through the center of alloy wheels. They were purchased in the late 1960s for a Dodge Superbee, and never used- 3 9/16" outside diameter, 3 3/8" inside diameter. Brand new in box, set of 4, asking $25. Please call show contact info