I have no recent experience with VTs, but I'm sure Dante will tell you who the manufacturer is; he's always been honest with me.
Must be 30 years ago that I went through 2 green vinyl tops on a '69 road Runner: the 1st one lacked the "antique" color detail. I don't recall who made it, but I do recall the Legendary material as having the correct colors & etc.
If your VT is black, no worries there.
I'm no an E-body expert, so I don't know the VT colors or whether they had that "antique" feature; I'm only aware of 2 seam widths.