Strange Trumpet

I bought this trumpet at a salvation army store for 85$ AUS. As you can see in the photos, it says Amati kraslice and its was made in Czechoslovakia. I'm just curious if anyone knows how old it is and maybe what its worth. I don't plan on selling it but it would be interesting to know if its worth more than I paid. I get it has to be older than 1938 since Czechoslovakia no longer exists. It's really dense and heavy compared to other trumpets I've held.

Thanks for any help!