there are those here who suggest a little talc rubbed over the backstamp can improve legibility. It's a shame that cutting styles have lost appeal but then perhaps this is what the public want - plus modern cutting is over acid polished usually, so sharpness is lost, and in a sense you might as well save some money and buy pressed glass to start with.

I'm being a tad cynical jeff - just that I'm a big fan of pre 1950 cut glass which often feels more alive than current material.
I guess these backstamps are applied after the foot is cut, which is what makes for difficulty in deciphering when they're applied to such an uneven surface. R.B. seem to have the same rather dotty idea, and theirs can be equally difficult to read sometimes, but you get to recognize some parts of makers stamps, though I've yet to see a Galway Crystal backstamp, and I think this one would have foxed me too.