My
periodic table poster
is now available!
Ad for osmiridium tipped pen.
A magazine ad for an osmiridium-tipped fountain pen.
Source:
eBay seller mirluck
Contributor:
Theodore Gray
Acquired:
25 April, 2009
Text Updated:
27 April, 2009
Price:
$5
Size:
10"
Composition:
Os
Ir