Thanks for the comments Keith, Fred and Andrew. It is a digital image shot today, that is why I was excited to post it. I don't usually "see" or convert my images into BW, but this site has helped me to open up my horizons. Nevertheless, I think it was the fact that the scene was mostly monotone to begin with that led me to try the conversion in the first place. With the benefit of immediate feedback through the display I could see which patterns worked and which didn't. To be honest, I do a lot of experimentation, and I can't say with any certainty whether this image is a multiple exposure on a single frame or not. Apparently the info does not register, so I may never know.
JMR