[9fans] postscript fonts

[Steve Simon]

being a postscript font virgin, can somone help me with what is
probably a simple problem for one who knows.

        troff doc.ms | lp
gives me:
        /386/bin/aux/tr2post: <stdin>:168 :WARNING: cannot find glyph, 
rune=0x20ac 
                stoken=<€> troff font LucidaSans

How do I add a euro symbol to LucidaSans?

Thanks,

-Steve