CRT Rebuilding update

[nasadowsk]

Out of curiosity, why were they using a different material overseas? (Which also brings up the question - did other vendors over there use different compositions for everything?).

I know Beryllium phosphors were used in fluourescent bulbs in the US until just after WWII, and they were also used in some projection tubes in the US. Did they ever see use overseas in either application? And if so, when did the practice end?