Condition: 
The photos of this classic Senior Duofold fountain pen do not do it justice.  The Duofold is in overall nice condition with some typical darkening of the jade color on the cap and barrel, there are no cracks or personalizations.  The barrel and cap have light surface scratches, the section has some marks on it.  The clip is firm, the clip has some wear toward the top, and gold filled cap band is firmly attached and has some light wear. The barrel imprint is clear and readable, as shown.  The pen has been cleaned, a new ink sac installed, it has been water and ink tested. This neat c. 1926 Senior Duofold is ready to use as a daily writer.
Restoration Work
The cap has been fully disassembled and cleaned
Nib and feed have been ultrasonically cleaned 
A new ink sac has been installed with 100% pure medical grade talc
The pen has been lightly polished
The pen has been water and ink tested
This pen is ready to write