No, it's not. Early top loading WP DWs were made by D&M, especially the portables with the Bakelite impeller and ones in the early 60s seem at least partially sourced through D&M. Paul's machine has the detergent cups located in the same place as the Kenmore we have. WP put their Gorman-Rupp pump and wash arm in the machine, but there is stuff about it that looks D&M to me. I could be wrong, but D&M had a lot of the top loading portable DW manufacturing equipment and, like with that Westinghouse top loading portable that we had a picture of because someone was trying to sell it, manufacturers would supply their wash systems, trim, knobs and buttons. I think John said that all of the WH top loading portables were made by D&M. For their first top loading portable about 1959 or 60, WH supplied their own racks and timers and the Power Booster option for 140F washes, but D&M were sort of the "go to guys" for people who did not want to design a machine of their own. I don't know how much was involved in making the tubs and lids and whether it was cheaper to make them or buy them for what was a specialty machine as builtins all became drop door front opening.