My first thought is: why would anyone remove the stickers from a brand new card?
Beyond that... the ATI vendor number is 1002, Sapphire has a subvendor number of 174B. Why does GPU-Z say the subvendor # is 1002? I don't know. As bystander pointed out it depends on the firmware on the card. The card may have the bone-stock ATI reference firmware flashed onto it.
I suggest you look at pictures of HD6950 cards, compare connectors, clock speeds, etc. and try to figure it out that way.http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007709%20600083901%20600095873&IsNodeId=1&name=Radeon%20HD%206950