Perusing a very rare copy of "The convoluted History of Gunmaking and Other Obscure Studies" it is opined that the O/U was invented by a designer whose wife had a enormous derriere.
Every time he looked at a S/S it reminded him of his wife hence the stacked barrels approach!
Daryl: That gun is actually painful to look at!
Jim
derriere, my $%#-- Here in the Heartland, the word is "Dairy-Air" and I get to smell a lot of it when I am shooting barn pigeons and crows on my string of area dairy farms-- The ritzy folk may spell it "Dairy-Aire" I suppose- but that just means it costs more- Go to Joe and Paulie's Gun Shop and buy a box of 30-30 shells-- $19.50 maybe-- But go upscale uptown to Joseph and Paulo's Gun Shoppe and the price is now $23.25-- go figure--