Mark,
There is no VOC museum in Amsterdam. VOC collections are exhibited in several museums in the Netherlands. Among them the "Rijksmuseum" in Amsterdam or the "Amsterdams Historisch Museum".
I found this link:
http://www.scheepvaartmuseum.nl/index.php?PageID=173
I searched for blades with VOC marks in a search engine for the maritiem museums, but I found only an inventory list that named an indonesian sword with VOC blade. Unfortunately no picture.
http://www.maritiemdigitaal.nl/search.aspx
Maybe someone with more patience can give it a try.....