K8096 Posted October 15, 2013 Share Posted October 15, 2013 It's heavy, so I assume it's made of brass. Chrome plated. Threaded on the inside. Knurling on the outside. There are no markings on it anywhere. Link to comment Share on other sites More sharing options...
keiser31 Posted October 15, 2013 Share Posted October 15, 2013 Looks to be a crankhole cover, but for which car, I don't know.....Buick, maybe? Link to comment Share on other sites More sharing options...
K8096 Posted October 16, 2013 Author Share Posted October 16, 2013 It's the diameter a gas cap or crank hole cover would be. I've never heard of a screw on crank hole cover though. Link to comment Share on other sites More sharing options...
keiser31 Posted October 16, 2013 Share Posted October 16, 2013 It's the diameter a gas cap or crank hole cover would be. I've never heard of a screw on crank hole cover though.There were clip-ons and screw-ons. Link to comment Share on other sites More sharing options...
TexRiv_63 Posted October 17, 2013 Share Posted October 17, 2013 Pierce Arrow used a screw-in crankhole cover at least on my 28 but not this style. Link to comment Share on other sites More sharing options...
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