Made in USA by Tung-Sol.
Brown base, black plate.
One of lovely indirect power triode tubes.

Nos but no box.

Made in USA by GE (1942)

Very good tube. Nice sounding.

Nos in military paper box. Matched pair and quad are available.

Made in USA by RCA

Very rare tube. Great sounding.

Nos in military paper box. Matched pair are available.

Made in USA by RCA

Very rare tube. Great sounding.

Nos in colour box. Matched pair are available.

Made in USA by United Electric (1967)
Special design for US's military under Western Electric's licence.
Bottom Tube-Getter. One of the best of 211s in the world.
Very very hard to find. Very good bandwidth, bass, midrange detail and soundstage.
Nos in military paper box. Opened for take picture only. Matched pair are available.

Made in USA by RCA.
Single plate version. muddy black plate, engrave base, Bottom Pan-Getter. 
Supper sounding. One of the best 2A3s in the world.
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Nos but not box. Tested very strong and matched.

Made in USA by Sylvania (1940s).
Twin mono plate inside black glass. Bottom Pan-Getter.
Very very good type. Sweet and balance sounding.

Nos in original box. Matched pair available.

Made in USA by RCA.
Single plate version. muddy black plate, engrave base, Bottom Pan-Getter. 
Supper sounding. One of the best 2A3s in the world. If you think that all 45 tube more musical than 2A3s. You will change your mind after enjoy this version.
Nos but not box. Tested very strong and matched less than 1%.

Made in USA by Sylvania (1950s)
Gray plate. Bottom D-Getter. Good tube.

Nos in original box.
Matched pair and quad are available.