1991 Topps Tiffany Traded -vs- Base Traded Set or Wax Pack Cards
Topps Traded Tiffany cards and regular issued Topps Traded cards are extremely difficult to tell apart. To make things more difficult, Topps issued Traded cards in both sets and wax packs. The regular Traded cards that came in sets were printed on the same white card stock as Tiffany Cards. The only way to tell the difference between a Tiffany Traded and a Traded set issued card is by the gloss on the front of the Tiffany. Sometimes, the gloss on the Tiffany cards can sometimes turn the front border to a white-yellowish tint, but not always. Both card backs will have the same background. You can identify the wax pack issued Traded cards by looking at the back. On the back of set issued Traded cards will be printed on the same gray card stock that the regular 792 Topps cards are printed on. Another indicator of the wax pack issued Traded cards is that there is only one * located on the back before the ©. Traded Tiffany and set issued Traded have ** on the back before the ©. Since it is extremely difficult to distinguish the difference between the Tiffany Traded and the set Traded by looking at a photo, once you have the card in hand you will want to compare the thickness and gloss of the card by comparing it to a Traded Tiffany card of the same year. If you compare it to a regular Traded card, then you should be able to notice the difference on the front with the Tiffany cards having a glossy finish and the regular Traded do not.
Warning: There are no visible markings or difference between Tiffany Traded and Traded Set issued cards that can be seen in pictures.