His was a particular kind of street theater in a city that delights in in-your-face characters who are, and are not, what they seem. For he was the sidewalk pitchman with the Upper East Side apartment. The sidewalk pitchman who was a regular at expensive East Side restaurants, where no one believed his answer to the “So what do you do?” question: “I sell potato peelers on the street.” Mr. Ades (pronounced AH-dess) died on Sunday at 75, said his daughter, Ruth Ades Laurent of Manhattan. She said he never talked about how many peelers he sold in a year, or how many carrots he had sliced up during demonstrations. She said he stashed his inventory in what had been the maid’s room of the apartment.