Wanted couple of these 6SN7 valves

[selfaddict]

I have two single 6SN7 valves which I would like to find pairs to test them in my preamp.

First one is Tung-Sol CTL-6SN7GT
This one has black coating inside glass, top is clear. Black oval plates

Second one is Sylvania GB-6SN7WGT.
This is one of Sylvania's 'Gold Brand' valves.

Thanks

P.S. So I am looking for a single valve of each type

[Si74]

I have two single 6SN7 valves which I would like to find pairs to test them in my preamp.

First one is Tung-Sol CTL-6SN7GT
This one has black coating inside glass, top is clear. Black oval plates

Second one is Sylvania GB-6SN7WGT.
This is one of Sylvania's 'Gold Brand' valves.

Thanks

P.S. So I am looking for a single valve of each type

I have lots(well lots of lots) of 6SN7s but given the variety of these, a photo of the ones you already have would be helpful.

Si