http://www.ebay.com/itm/Hohner-Cajun-accordion-Model-114-Key-Of-G-Only-Very-Slightly-Used-/161465362239?pt=LH_DefaultDomain_0&hash=item259815e73f or link #1.
That Bobby Gardiner stuffs great. Its a certain thing that irish 1 row stuff, I've also just stumbled accross John J Kimmel- a German New yoyker who played Irish style 1 row early last century. Over here in old blighty there is a tradition of 1 row playing with an Irish influence in East anglia- the south east and in common with Cajun, a C box is favoured. They combine it with step dancing which is somewhere between clog and tap dancing on a stone pub floor or a wooden board. Its alien territory though when you're used to playing cajun and creole style, even though that stuff is something closer to home for me... oh lord if I ever get the time!