1974 west germany World Cup

Silver value or less. Silver price is extremely high at the moment.

Ok thanks, do you know other caratteristics of this coin? I can't find documentation

Here's one on sale for 45 euro.  Doesn't look like silver though.

https://www.kleinanzeigen.de/s-anzeige/gedenkmuenze-weltmeisterschaft-1974-in-deutschland/3072250596-234-1676

Thanks! I checked with a magnet and it is actual silver (idk how much %) I tested with a magnet. Is it possible to add this coin to the numista website catalog?

Yes you can and should add it as a medal (it's not a coin).  

A coin, a banknote or a piece of exonumia is missing in the Numista catalogue: what can I do?

How do you know it's silver?

Magnet test: put a coin at 45° inclined. Drop a magnet. If it is silver or pure gold it will go down slowly

Giacoro

Magnet test

Meaning it's not magnetic?

Magnet test: put a coin at 45° inclined. Drop a magnet. If it is silver or pure gold it will go down slowly

Yes. Good. So will copper and aluminum.

This shows aluminum and silver coin.  The silver goes down the magnetic slide faster than the aluminum.

Then I don't know

Take it to a coin or jewelry store and see if they have an XRF.  Could be silver plated copper. Could be solid silver.  Or here are a few tests you might be able to do https://www.silvercoins.com/fake-silver-coins-14-ways-to-spot-counterfeits/#google_vignette

Not silver. Passed all test except sound test. Also it is just 40mm*2.4mm 30.3 grams

Coin shop probably scammed me

Don't be so sure. With those measurements the apparent density (assuming a cylinder) is 10.0 g/cc.  The actual volume is less since the thickness is the maximum thickness so the true density would go up.  I think it really is silver.  How did you do the sound test?

I thought / think the numbers under the „FIFA World Cup“ lettering on the trophy was the silver purity. But I can’t quite read them on the images.

If it is silver this is the %, 30g x 2.25 x 0.860 (as an example) = 58€ 

Giacoro what are the numbers on the trophy?

Giacoro

Is that 986 or 086?

I put the middle of the coin on my index finger. Hit the edge with a 92.5% silver coin and the sound was not so high pitch, and it lasted 2 seconds. With other silver coin it was longer and higher pitched.

986