VIAGARA pen by Pfizer. High quality collectible. "Heavy metal" construction

Description

On of the most popular pens for collectors are the "Viagra" pens. Not only a collectors item but one that has been given out to others as a gag.
This set contains five very high quality "heavy metal" pens, clearly new and unused.  I have also included another pen that is of the Viagra genre since it is all by itself.  It is also a "heavy metal" quality pen that appears to be used. It is a well designed pen, made for writing comfort and although a "heavy metal" pen, it feels light in your hand. include as extra because it is the only one in my collection. It is a pen you can use everyday. All pens use Parker refills, attesting to the quality and thought put into their design.
Collectible pens generally fall into three classifications; plastic, "light" metal and "heavy" metal. The plastic pens can be very expensive depending on their age and manufacture. Bakelite was used early on but has a tendency to crumble with age.The "metal" pens or a combination of metal and plastic or a metal/resin combination. This is also true in fountain pens, old drafting mechanical pencils or even older wood pencils. I am trying to reduce my collection (over 7000 pencils, pens and slide rules) and will be listing them over the next several months.