Bigroby, first let me welcome you to the forum.
As Baz69 has already written, there have been variations of the placement of the scabbard screw(s). Also the form of the screwhead varies. There are period scabbards with two side screws, one middle screw, one side screw, without any screw and screws with domehead, flat head and no head well known.
When you left-click at my nickname above the avatar (in the left section of my post) you get "view profile" where you can see my e-mail adress. When you send me the pics I can publish them here for you.
Regards,
