about tubes svetlana winged c help


hello, i wonder to know if this tube its original or not

https://www.ebay.com/itm/EL34-SVETLANA-GENUINE-WINGED-C-NOS-MATCHED-QUAD-/310210519022?mkcid=16&...

please help
israrami
It has been years since I have had the true Svetlanas in my inventory but these looks like what true Svets became after New Sensor made this entire thing confusing. The Winged C tubes are the true Svets after I think about 2000 or so. They sound different than the New Sensor Svetlana branded tubes.
Per the photo the top spacer does not look like that of any St. Petersburg Svetlana EL34 I've handled, but perhaps production varied.

Can't tell from the pics if the plates are welded of crimped.

All of my Svetlana St.P tubes (including 300B's) had an off white stenciling (not black).

The Xpo-Pul/Reflektor factory tubes I've used (2A3/300B/6922) had black stenciling.

DeKay