SirChrislov wrote:
I purchased this one in the link below
what link?
People Talk About The Dubrovnik 1950 Set But Why Not Its Original 60mm Sq. Folding Board/Case?
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Recently RCM has released a Dubrovnik style folding board with 57 mm square size. Planning to buy it soon.
https://royalchessmall.com/products/1950s-dubrovnik-chess-board-folding-style-in-golden-rosewood-maple-wood-with-internal-storage-57-mm-square?srsltid=AfmBOoqyudg6yRzGO7X-YjBxLav9DCuJ9VXE1uKUn8aLrCaw2LUMth1i
It's not on the website but google search for Dubrovnik style Folding board leads to the url. I found out because of RCM google ads on my browser. 
Wouldn't it be natural to have it go with set?
Manufacturers high end and not so high end make the pieces but not the board we see in Jonas' videos.
After some searching I purchased this one in the link below and as far I've checked (and I checked a lot)no one else makes this uncommonly large folding chess case in the 60mm (2.375") sq. size.
It's not an exact match but as long as it had the size of the squares right and the walnut/maple color. (The original I believe is Chestnut and Walnut). ,It also sports a black line that surrounds the playing field of the board that makes it look sophisticated as opposed to the raised edges of the original which I don't mind, I love that black line. No Notation as in the original and the inside non green felted but I did that myself . The original came with cheap hinges . This one, great looking lock-devices.