samples
 

Roberto: the samples are NOT a variation! would you call a press proof a variation? no it is a press proof, a 1st day issue is not a variation etc,etc,etc.you also have the studio samples twice!

Studio Samples
Stuido Samples Gold

I just indicate is a variation because is the same card the only diference is the foil color on sample lettering at the back, since they both has the same foil on front.
Also the two Studio Samples, you should look at them carefully because one is #196 and the other #86. I just list your card, the other two were listed long before I can add new cards to the list.