Made in USA.
Similar to the 10Y, VT-25-A.
Muddy black plate, Engrave base, Bottom Cup-Getter.
One of classic triodes. Super tube for Sun-Audio VT-25 Amplifier.
used but tested very good and matched

Made in USA.
Similar to the 10Y, VT-25-A.
Muddy black plate, Engrave base, Bottom Cup-Getter.
One of classic triodes. Super tube for Sun-Audio VT-25 Amplifier.
Nos in original box. Matched pair are available

Made in USA by RCA (1930).
Similar to the VT-25-A.
Muddy black plate. One of classic triodes.

Nos in original box. Four tubes are available.

Made in USA by Philco.
Similar to the 10Y, VT-25-A.
Muddy black plate. Engrave base. Bottom Pan-Getter
One of classic triodes. Very nice tube for Sun-Audio VT-25 Amplifier.
Nos in original box. Matched pair are available

Made in USA by RCA (1930).
Similar to the VT-25-A.
Muddy black plate. Bottom Pan-Getter.
One of classic triodes.
Nos but no box.

Made in USA by Sylvania.
One of classic triodes BUT used tube socket B4 type. Like PX4, PX25, U18/20.
Muddy black plate. Bottom Pan-Getter.
Super rare. Great sound
Nos in original box. Matched pair and quad are available.

Made in USA by Sylvania.

Brown base. Muddy black plate. Bottom Pan-Getter

Like new. Tested very strong and matched. Pair and quad are available.

Made in USA by Western Electric 1994.
Curvilinear triangle mica on top.
Blue lable, black plate. O-Getter

Nos in original box.

The W.E. 300B is a vacuum tube with a long history of high performance and great sound. These tubes are new and in their original packaging. They were manufactured in Huntsville, Alabamba at the Western Electric plant. They are current production 2006 to 2008. 
Authentic Western Electric tubes - they do have 4 letters W - E - C - O on the bottom. As I know, that mean Western Electric Corporation. New in original box.

Made in USA by RCA.
One of great version of DHT power tube.
More power than 2A3 with super sounding. Very best.
Muddy black plate. Big balloon body. Bottom Cup-Getter.
Nos in original box.