Everybody knows him. This is selfexplained.
The nice JY50 folded card.

Hand made QSL from the CQWW DX CW 1991 from Nigel.
Thank you for the points. 24-Nov-1991 at 0624 UTC on 20m

whoooops ... on the first view.

But he moved south.

One of the best calls I ever heard.
Mike G4IUF was at the paddle.
22. April 1991 at 1948 UTC on 20m

The QSL from another real CW enthusiast.
The QSO is more than 20 years old.
I met Luis on 07.01.1985 on 7.021 kHz.

Who is this station?
I received this card without any QSO data. 
Although the rear side is blanc
this is not really a blanc QSL.

Great: I worked and QSLed 1Z9A 
But who is this station?
The prefix block 1AA-1ZZ is unassigned
and has not been allocated by the ITU.
Maybe an unofficial use?

This is the front side.
I would say it is Cologne.

This is the back side.
The name of the Op is Wolf
but what is the call?

The quick handmade QSL from
DL18B?, DL18B9, DL18BS, ... ?

Anyway, we had a nice chat.
 Thank you for the QSL card Bernhard.
I assume the call is DL1SBS.

This is the front side.
I would say the printer failed.

Also the back side does not say
much about the OP.
Who is this station?