Hans Wegner  

Nice to find that at a Goodwill.

i hate you...hhah jk
its a RY-20 sideboard by hans wegner for RY Mobler
and if you ever need to take it apart, here is how
http://www.thomaspenrose.com/diy_RYmobler01.htm

It is probably marked with an ink stamp on the outside of the top case on the sides. You have to remove the screws and slide it out backwards. There might be a Danish Furniture Control medallion inside the top drawer with felt.

Here is documentation. Also it shows that the RY-20 did come with glass doors (if you read Danish):
http://movablemodern.com/documents/860/document-%C3%B8nskebo-catalog/pub...

Thank you all for your input. I love this piece. I do want to clean it up a bit so now I have to figure that out. I do not want to do anything to hurt it. I loved the article about taking it apart. Wished I new that before I moved it home. I also tried to read the article that was in Danish. I guess I need a translator. Thanks once again.
Robin K

Nice find Robin!!!
difeliciantonio,
If you are looking to buy one for yourself here you go..... It's going up for auction on June 22nd, 2015
Link: https://www.liveauctioneers.com/item/38002884_midcentury-hans-wegner-for...