FYI: These tubes are measured in autobias mode according the manufacturer data sheet.More information you find at the end of this describtion

For any: CV10662 ECC81  E81CC 6201 CV815  7728  QA2406  A2900 QB309 B739 E2157 CV455  B309  B152 12AT7 6060  6679  ECC81WA

2 x unused tubes  6201 Valvo Hamburg = ECC801s 12AT7WA 
 
matched pair


Measured in autobias mode
Gm/µmhos 73000 + 70000  and 73000 + 69000 (new = 55000mA/V >4500...6500< )  
Anode current Ia:  14mA + 13,8mA  and 13,4 + 13,1mA (100% = 7mA ........14mA)

Please do not confuse "S / gm" with "Ia". 
Only the value s / gm says something about the emission and thus the life time
Measuring device used: RoeTestV11.

Measurement mode: Autobias as specified by the manufacturer.
In autobias mode the tube is measured with a constant anode current. This corresponds to the application in the device.
Note: Most tubes offered on ebay are tested with a fixed grid bias voltage. Such a measurement contains a general system error. The desired result in the application is therefore purely random.