Do you know what Swiss? medal is this? [solved]

My friend asked me about this silver medal and I tried to research, but I found literally no information.

It looks a commemorative medal for a coin convention in Basel, but the style and the case look more Polish or Czechslovakia.

Does anyone know about this?

 No pictures visible [to me anyway] - just two small coloured squares, as shown. 

https://en.numista.com/forum/forum35.html  

 That is the correct forum, so suggested to try again on there. 

Coin information and questions › Exonumia identifications and valuations 

As even from the title it is a medal [exonumia not a coin], and identification is requested. 

Same problem here, at first. Opened each in new tab and then they showed up. Not OP's fault.

 Thanks :) 

 Lettering - obverse 

BASEL SCHWEIZ 3-4 FEBRUAR 1973 [signature below castle] 

 Lettering - reverse 

II INTERNATIONALE MÜNZENBÖRSE + 

Google image search gave this:

but I couldn't find anything at the link https://machochlapovic.com/en/auctions/44/2396

Found it!

https://machochlapovic.com/en/auctions/44/2253

 Thanks - was trying to read the name  KO????KY  and that page says 

Classification - Czechoslovakia (1960-1989) 

Author - Z. Kolářsky 

Diameter - 33 mm 

 So yes, even though made for Switzerland it was correct to write > 

‘but the style and the case look more Polish or Czechslovakia’. 

Thank you all, it is very helpful!

I decide to think this is a medal issued by Czechoslovakia for the 2nd international coin fair in Basel, 1973.

Thank you all again!