Came across this for sale today. Had never seen one. Wow... no barrel!
http://www.gunlistings.org/iowa-gun-classifieds/des_moines/pistols/100993/rare_reid_nuckle_duster
http://www.gunlistings.org/iowa-gun-classifieds/des_moines/pistols/100993/rare_reid_nuckle_duster