What did these come from?

Anyone know what year and model these trim pieces came from?
I've been looking, but haven't found an answer.

They look to be rear 1/4 trim pieces. They are 16 inches long and have 1686330-1 on the bottom.


thanks.

 

looks like a fender rocket for a 59 Impala.

 

Might be these.

 

Anyone have a close up pic of the Dodge hood ornaments?