Does anybody knows about the Designer of this Sideboard ? Thanks  

@chris-danish Any markings on the backside? Found a marked piece online. The stamp is Samcom which I assume was a later brand name for Edvard Valentinsens furniture factory in Espe. If so, Edvard Valentinsen would probably be the designer of the piece. 

Thank you very much for your suggestion. I took a look at E.Valentisen Sideboards, it doesn't really fit so still to be clarified. But thanks again.

I also saw that Samcom-marked version.  Found this thread where DrPoulet notes that Samcom was a French importer of Danish furniture.  So, doesn't help much on maker or designer.  

https://designaddict.com/community/identification/uldum-table/#post-173382

@mark737 Thanks for the clarification. Didn't remember that one. It explains why I didn't find any trace of Samcom in old Danish phonebooks.