Fisher Space Pen Pressurized Refill - Black / Blue Collection_Back Shelf As with the original Homo

As with the original Homo Sapiens

This green edition reflects the greenery of nature

such as the shimmering gold lacquer and the 14-karat gold winged nib

The barrel is made of grey and blue cellulose acetate with a pattern reminiscent of the original historical model of the 1930s

All metal parts and the barrel are finished with a tough anthracite-colored PVD-coating made of titanium

Fisher Space Pen Pressurized Refill - Black / Blue Collection_Back Shelf As with the original HomoPaul C. Fisher developed the pressurized refill for NASA in 1966. It's still in use today on manned space flights because it performs when other pens fail. The combination of tungsten carbide ballpoint and thixotropic ink in a hermetically sealed cartridge pressurized at nearly 35 lbs. per square inch allows it to write in freezing cold, boiling heat, underwater and at any angle, even upside down!