This is what I presume, as i have card n°20. But after a bit of search, I found that there must be at least 24 cards. Unfortunatly I don't have all the cards in this set.
In the first post, I showed some of the animation around the 7th International congress of Esperanto, that was held in the Belgian city 'Antwerp' (or : Antverpeno, in Esperanto).
Apparently there was a kind of cinderella stamp in use to promote the 7th International Congress.
I don't have that stamp in my collection, but I found it in the internet and I'm sharing it with you.
|cinderella to promote the Esperanto congress - not in my posession|
There are many missing in my collection, but I'm sharing those I have.
|Group photo after the Red Cross Performance - Card 4|
|card 13 - during the congress|
|View of the Gerneral Assembly in the big hall of the Royal Zoological Garden in Antwerp|
|Card 20 - gathering after the convention with the international guests|