Question about B&B Italia (older models)  

Hi folks,
I have a question about the B&B Italia Diesis small table.
Does anyone know in what year B&B Italia started putting their brand onto their furniture...all latest Diesis tables have the brand in the leather top under the glass.
Reason i ask this is because i ran into a table that is "exactly" the same as the diesis table except for brand logo in the leather and the plugs on the feet and top where the glass rests on....In this case the plugs have a gold color, on the website however there is no such option to order the table with gold plugs...
Does anyone know if this table ever was released with the gold plugs or is this a sign of a possible knock off.
I contacted B&B italia two times asking the exact same question but they obviously don't care as they don't even reply.
I did find a diesis sofa with the same gold plugs on the feet. (picture)
http://www.lauritz.com/Item/ItemImage/ItemImagePage.aspx?LanguageId=1&ItemId=2966154&ImageNo=2&ImageCount=14