I was cruising the net and stumbled upon the shotgun pistols used by Sidney Poitier in 'Buck and the Preacher' :
The Howdah Shotgun Pistol. Not sure if these were custom made.
More research revealed that a similar 20 ga. pistol is in current production, made by Davide Pedersoli in Italy.
Cabelas has them - ($699).
_________________Shoot 'em if ya got 'em...
Maryland 10th Cavalry Gun Club: http://mdtcgc.wildapricot.org/
Buffalo Soldiers 9th and 10th (Horse) Cavalry Assoc. - Baltimore Chapter
State of Maryland Designated Collector (Firearms)
03 FFL (C&R)