Maybe the former owner was from Cologne (Köln) in Germany? Or perhaps the camera smelled of mold and he tried to disguise that by putting a drop of cologne on the leatherette. Some leatherettes, or their glue, can be sensitive to alcohol, but I would use diluted alcohol, maybe to 25%, and wipe the camera. Then put it in a plastic box with Sodium bicarbonate and let it stay there for a day or two. Most of the scents used in colognes are soluble in alcohol.
A Kodak Retina I bought reeked of old cigarette smoke. I gave it a good wipe and cleaned all the metal and glass parts, and the smell went away after a while.
I'm a pipe smoker, but I only smoke with a window open and the kitchen fan on, and none of my cameras smell, and neither do my clothes.