It's an 8" x 10" (most likely a reprint), and was taken about 1934 or '35; love that look on her face, not to mention those magnificent legs. You can buy it for $4.99 by going to http://cgi.ebay.com/CAROLE-LOMBARD-STUNNING-SWIMSUIT-8x10-92-/360308053756?pt=LH_DefaultDomain_0&hash=item53e40896fc.
And for those of you who enjoy snow, how about bidding on this "wintry" pic of Carole before you go out to the ski lodge? She's watching Gene Raymond and Robert Montgomery go at it (most likely in fake snow on the RKO lot) in this original publicity still from "Mr. & Mrs. Smith"?
It's 8" x 10", in very good condition, and will be available through 7:42 p.m. (Eastern) on Sunday. Bids begin at $9.99, and as of this writing no bids have been made. For more information, go to http://cgi.ebay.com/Carole-Lombard-Mr-Mrs-Smith-ORIG-1941-scene-still-/260698790083?pt=LH_DefaultDomain_0&hash=item3cb2dbd8c3.