The very top of this has "XX" then "Gloria et devise en domo ejus et Tuositia ejus en seculum" on it (as best as I can tell). Under magnification it appears to have been hand engraved
THE BACK SIDE
In the center is "Alpha et Omega." Then in the quartered areas are "Agla, Adonay, Eloym" and some other word that I can't make out. Around the perimeter is "Aericus, Squincus" and a few others. Their are several other words and some very strange symbols as well