Header Identification

I just took a set of headers off my small block 360 that came with my Barracuda. My mechanic guru says they are a nice set, tuned...

They have numbers on the base...
TC 6449 (right side)
RG 6449 (left side)

or something close to that ... The 6446 is clear. They are coated, not sure with what. they are fenderwell headers.

Any idea of the make? Like to know.....!

Scotty