With that ebay username they should know better

[Kent]

https://www.ebay.com/itm/224178805454

Repros for sale as NOS, early and original look at the sticker thats really weird

[shelbymann1970]

Either way the hinges changed. 69-70s use a different hinge. I'd say if no date codes are a good sign also. I just had a beautiful assy line set phosphated with the springs. So are they worth 450 then? Gary
This might help also. http://anghelrestorations.com/uploads/3/5/1/2/35122002/hood_hinges_v1.1.pdf

[Bob Gaines]

Either way the hinges changed. 69-70s use a different hinge. I'd say if no date codes are a good sign also. I just had a beautiful assy line set phosphated with the springs. So are they worth 450 then? Gary
This might help also. http://anghelrestorations.com/uploads/3/5/1/2/35122002/hood_hinges_v1.1.pdf

That style of hinge was introduced in late 68 production however the mushroom style stamped rivet indicates it is a later service part because the assemblyline rivet has a X stamped rivet end.

[TOBKOB]

The stickers show the dates as 3/19/99 and 3/19/9...

TOB

[Kent]

And the rivets on the later ones had a small o in the middle form the stamping tool these ones not.

[shelbymann1970]

The link to Marcus' page above  pretty much sums up all of this. He has some excellent info on his site on many parts that he  graciously shares with anyone. Gary