what it is, is a knackered die, look at the crack across the neck, to me the letters look underlying, rather then double struck.
if you zoom in you can see doubles on the first Letter in GEOR, the R and X in REX, to me the consistency isn't good enough for double, it might well be doubled as well, but there is a clear 8 over another 8, as for the 9, its over another 9 if anything.