There are many titles from the late 70’s early 80’s that have had Lobby Card sets bootlegged. They are sold by the same group of eBay sellers who have an endless supply of the so-called “minty white” inserts.
Here are pictures of the minty white set and the genuine set side-by-side. Note the repro set is on the outside in columns 1 & 4, the real one on the inside in columns 2 & 3.
(click on thumbnails for full-sized photos, and again to zoom-in)
The reproduction set (which I picked up when a Rochester seller changed his eBay ID so I thought they were a legitimate seller) has four main differences from the original set.
1. Wider borders: the photos of the scenes are shrunk in size.
2. Different inks are used: blues are deeper.
3. Text at the bottom of the card: Fuzzy/Smudged GAU logo, NSS disclaimer different shade of grey.
4. Art crop on the 1 sheet image in the bottom left corner. (I’m not sure why there would be an art crop just on this part of the card, and not the main photo, which while smaller appears complete, but there is!)