Here is a Reverb listing:

https://reverb.com/item/36084377-vintage-besson-20-16-15-becken-set-orig-50ties-cymbals-made-in-england-rare

This seller states they were made in England...

Here is the long text from the listing for future reference:

"Besson" cymbal set orig. 50ties crash ride cymbals - made in England rare

The company Besson was a company, which offered drums, percussion instruments and all accessories for this in large scale between the 30 - 50s: see also:

Here is a very rare cymbal set from this production:

20" RIDE - Original and still in good condition. No rust. Weight = 1780 grams.

16" CRASH - Original and still in good condition. No rust. Weight = 1040 gram

15" CRASH - Original and still good condition. No rust. Weight = 775 grams.

Traces of use according to pictures.

This is an article from private property. The article is offered and sold as it is shown and described on the product pictures. No guarantee and no return!

Cheers