Manu: Western Electric 

Model: 313C 313cc 5952

Cold Cathode Gas Discharge Neon Tube

Tested:  Good 

my reference #1

The 313CC is a low power triode tube that's highly sought after by audiophiles for its top-notch music reproduction. With a plate dissipation of only 2.75 watts, it delivers a warm and rich sound with smooth highs and tight lows. This high-quality tube is also known for its linear operating characteristics which result in low distortion, making it ideal for use in audio preamplifiers, tone controls, and low power amplifiers. Its excellent performance and reliability make it a popular choice for music enthusiasts seeking the ultimate listening experience.

Cosmetic Condition: On a scale of poor/fair/good/excellent its in the good category.  Some of the black paint has worn off and the tube glow shows well. 

Regards,

Paul