Bob after thinking about it...I would say you are right about that knife being made in the late 1990’s.
In 2000 a new Federal Shield was introduced. It was patterned off a large Cattaraugus swing guard “King of the Woods” folding hunter. This shield on the eBay knife is an older style and probably not used as much on SaddleHorns after 2000.
New'r Shield

Old'r Shield
Which do you like better?