Have You Seen... Stroker on the #3

Ladies, keep your eye out for this cowboy: cops say that on Friday afternoon he got on the northbound #3 at 42nd Street, took a seat across from a 41-year-old woman, and started -- there's no delicate way to say this -- beating off. He got off, in the more literal sense, at 96th Street, but not before the victim used her cell phone to take this picture.

The air-rape victim is not easily deterred. She took her complaint to the 32nd Precinct and was "apparently rebuffed by a uniformed officer" who said the police didn't handle such things and that she should call 311, NYPD tells us. Internal Affairs is investigating.

Meanwhile if you have information as to the masturbation or the masturbator, NYPD asks you to contact 1-800-577-TIPS(8477), www.nypdcrimestoppers.com, or text 274637 (CRIMES), then enter TIP577.