I like this pen for its clear plastic feed. Unfortunatley it is also one of my failures. Obviously, it is an old pen. It was an eBay find for around $10 IIRC. According to the seller, it had been restored (just a new sack). Well, it wrote very dry. I tried adjusting the flow as the tines were really closed up. While I was doing this I heard a pop. After examining it closer, I found I had cracked the section. It does not leak but I have not been able to get the pen to write wetter.
Just info I found on the pen
Wearever Pennant Fountain Pen
Circa 1950-1962. "C-flow" feed clear plastic designed to allow the writer to see when the pen needs refilling.
Gold plated "overfeed" designed to keep the nib from drying out when pen is uncapped.
Ad from the 1950's describes the pen:
This Exciting Pen
Restores your confidence
in what $1 will buy
Wearever Pennant by IvanRomero, on Flickr
Wearever Pennant Fountain Pen Nib (Medium) by IvanRomero, on Flickr
Wearever Pennant Clear "C-Flow" Feed by IvanRomero, on Flickr
Wearever Pennant Fountain Pen by IvanRomero, on Flickr