Yes, I would agree, 2000 lb HC bombs ("cookies") with (I believe) "drum" tails. The 2000 lb bomb had a diameter of 18.5 inches while a 4000 lb cookie, for example, had a diameter of 30 inches. Judging bomb size by the men in the photo, I would guess these bombs are the smaller version.
http://www.wwiiequipment.com/index.p...ombs&Itemid=60