score:15
The inscription LEOPOLDUS II D·G·R·IMP·S·A·G·H·B·REX·A·A·B·L·D
abbreviates the following:
Leopoldus Secundus, Dei gratia Romanorum imperator semper augustus; Germaniae, Hungariae, Bohemiae rex; Archidux Austriae; Burgundiae et Lotharingiae dux
These refer to, in order, his titles of:
Note that this is not Leopold II's full title. He held so many kingdoms and duchies it is highly unwieldy to list them all.