Paint Identification

[1970 CST]

Looking for some help with identifying the paint code for my truck. Unfortunately the SPID does not have a paint code on it. I spoke with the PO who said he painted it using Imron in the original color(?) which he said was Red/Orange but he did not have a paint code. I thought it was a little odd since the interior trim package is red. But from what I can tell all of the nooks and crannies where he didn't paint match what he did paint. Any suggestions would be appreciated since I have a few nicks, etc that I would like to touch up.
Terry