I don't know what photo they're looking at -- I initially believed it might have been Paramount p1202-495, which is unique among Carole's portraits in that it doesn't show her face, only her hands (http://carole-and-co.livejournal.com/341450.html), but a glance at the photo-within-a-photo show the hands to be in a different position. Moreover, p1202-495 was taken several years before this was. The photo is apparently not an original, as it's printed on glossy film paper and measures 8" x 10", so there's no snipe to aid in photo detection.
This item is being sold under eBay auction auspices, with the starting bid at $6.99 and bids closing at 12:24 a.m. (Eastern) Thursday. Want to bid? Then visit http://www.ebay.com/itm/CAROLE-LOMBARD-with-a-photographer-8x10-candid-photo/181154633026?_trksid=p2045573.m2042&_trkparms=aid%3D111000%26algo%3DREC.CURRENT%26ao%3D1%26asc%3D27%26meid%3D8225582289092647383%26pid%3D100033%26prg%3D1011%26rk%3D2%26sd%3D290928159274%26.
Note: The photograph that earlier appeared in this entry was that of Ann Sothern, not Lombard. (I was somewhat doubtful it was Carole at the time I composed the entry, but I gave the seller the benefit of the doubt. I was wrong.)