Condition: 
A classic Esterbrook SJ fountain pen in a vibrant red with marbled pattern, there are no cracks, no personalizations. This pen includes its original cap sticker, branded box, and filling instructions, a nice set.
The barrel and cap show expected micro-scratching commensurate with age. Both cap and barrel jewels are intact and free of chips. The clip is secure and springy, with no wobble. The barrel imprint remains clean and legible.
A freshly installed ink sac ensures it’s ready to write the moment it lands on your desk, or wherever in the galaxy you call home.  Box and instructions show their age: marks, discoloration, and small tears, all photographed for reference.
 
Restoration Work:
The cap has been brush 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 ink tested
This pen is ready for ink