Triode radio valve From 1920s

Very Early Telefunken?

Appears to be RE11 thou it is not readable somehow.

Type invented as early as 1918!

Vf 2,8 Volts / If 0.55 Ampere

Original wrapping no longer seen on its Copper-like base.

Rare from the then AEG edition.

Old tipped quality and beautifully made.

Filament continued but Meter reading maybe not correct.

Vintage Antique For collection only.  Sold as seen No return accepted.

FYI Last image added from internet.