This must be Quicksilver by Dean Morris (Letraset, 1976)
This font was also supplied with some old versions of Corel Draw as "Quicksilver" or "Quantum".
You can find an interesting text about this typeface -by the designer Dean Morris- here:
http://www.myfonts.com/WhatTheFont/forum/case/22838/#msg206794
Captured from web.archive.org on 8 Nov 2013. view this capture