GOOD SERVICE PEN CO, CHICAGO ILL. (SR) Fountain Pen
in Red/Black Ebonite
with Gold Toned Trim at clip and cap band
14k Warranted #8 Flex Nib seem to be left oblique
Tip is worn but still has some iridium tipping 
Sac holds ink
Condition is very good
The pen is a blast to write with soft and flexy
Thanks for Looking
Chanhassen Design