Niobium

For those of you looking for a commercial version: Halmos has allowed me to rework his fonts and offer them with a (very generous) commercial license.
So if you need a professional quality Unicode OpenType or TrueType version of this font with a multilingual and expanded character set - you will find it here:
http://www.cheapprofonts.com/Niobium_Pro
(Halmos receives royalties from all sales)

The original font design of Niobium:
Roslyn Gothic by Harry Winters for Visual Graphics Corporation in 1972.
http://new.myfonts.com/fonts/itfmecanorma/roslyn/
http://new.myfonts.com/fonts/letterperfect/roslyn-gothic-lp/
http://www.linotype.com/305728/roslyngothic-family.html