A perplexing poster for me to categorize. While obviously promoting the film ("Blue Velvet" at the bottom) the image is not from the film.

This, and it's unusual size, makes me feel it is a commercial print, most likely US or UK in origin. No identifying marks as to the publisher or printer can be found on the poster.

I have only ever seen four copies of this poster - relatively hard to find. A compeling image and style makes this an extremely intriguing poster.