Label Of Polish Philatelic Union

Dear Stamp Community Family

Here I show a Label from PZF - Polski Zwiazek Filatelistow (Polish Philatelic Union). Wymiana means Exchange (according to Google-Translator). I have asked PZF directly to get more details, but I did not get any answer from them.

Does anyone know if this label was used on stamp exchange envelopes? When was it in use?

For any hint, thanks in advance.

Best regards from Switzerland

André

Is there any gum on the reverse side?...if not my guess it is just a ticket that can be exchanged for goods or services.
Somewhat like a coat check room ticket....that would be my guess.

Dear graphis

Yes there is full gum on reverse. Maybe YeaPolska see this topic and can be helpful.

Best regards from Switzerland

André

I'll ask at the PZF forum & see if there's any result

Wow, quick reply from the PZF forum, here's the gist of it.

In the Communist era of the People's Republic of Poland, all international exchange of stamps was controlled by the State & it used the PZF to do that. The Communists were mindful of collectors trying to make a business out of selling Polish stamps internationally & obtaining hard currency, the Communists wanted to make sure that THEY were the only ones trading with foreign dealers & obtaining US dollars or Pounds sterling. If you wanted to exchange stamps internationally or, in the 1950s, if you wanted to obtain the "blocked" values of stamp sets, you HAD to be a member of the PZF.

The way it was supposed to work was thus - you sent your unsealed letter with stamps, in a separate cover, to your local branch of the PZF. They made sure everything was OK, & if so, sent your letter on the way enclosing one of those stickers. The recipient would then send back some stamps, placing the sticker on the envelope so that the Polish Post Office knew that this was a sanctioned stamp exchange.

The person replying to my question stated that he had obtained a sticker placed INSIDE the envelope not stuck outside, so obviously the sticker system wasn't always adhered to.

Nicely solved Rick.
Well done you.
Saved in my Poland Album.

Dear YeaPolska

It is once again amazing what knowledge comes together here. You just have to know whom to ask. And then he knows who can ask. Thank you very much for this incredibly detailed answer. I hope that I know sometime synonymous so much that I can give similar answers. Or just know where I could find something.

Best regards from Switzerland

André