The Penol No. 2 Aëro was made between 1937 and 1940 at the Christian Olsen factory in Copenhagen. The “Aëro” designation refers to the fact that it is a button filler with an ink sac, but includes an ink window at the top of the barrel. In fact, this one also has a transparent portion of the friction-fit section – so you’re actually looking through both the barrel and the section.
At that time, pens made at the Penol factory were assembled from whatever parts they had on-hand, and turnen by-hand on lathes. This is why two Penol’s – even of the the same model may not necessarily have interchangeable parts. It also explains the mismatched gold cap bands and nickel-plated clip on this pen.
The cap bands show signs of brassing, shown below.
- Material: Green Marbleised
- Nib: “Penol 14CT 1ST Quality”
- Nib size: #5
- Cap bands: 2
- Length, capped: 113 mm
- Length, uncapped: 103 mm
- Barrel diameter: 11.0 mm (max)
- Cap diameter: 14.0 mm (max)