Allen To me it is not an off topic subject because if one has a pre '60 sumthin Imperial the chances are of them not having an factory installed OEM air conditioning or dealer installed aftermarket is there. The '39 of Mr. Martin or some others would be an possibility. Rodger & Gabby Colo Spgs '47 De Soto Custom w/Fluid Drive & passenger door mounted swamp cooler '63 Le Baron w/F-Sweep trunk lid & std A/C '66 Le Baron w/dual A/C & reverbed AM/FM