Metal tag on rear bench sear bottom

[Mjcre]

Pulled my rear seat to see if I could find broadcast sheet. No luck but I did see this metal tag attached to seat frame (bottom seat). I haven’t heard of this tag on the seat before. I thought the numbers might be the VIN but I don’t think so. I know the pic is backwards but I didn’t want to bend the tag.
Does anyone know what the numbers are?

 

[Mjcre]

Forgot to mention. Seat came out of a 69RR but can’t guarantee it didn’t come from another vehicle when restored 20+ years ago.

 

[Baller]

My '70 GTX had one and the seat was made in Compton. No idea what it is for.

 

[The Rebel]

They're assembly tags.

 

[69Coronetrt]

They're assembly tags.

The tag typically lists the vendor number, the assembly number, a date code and a trim code.

So it tells you who made it, what it fits, when it was made and the color.