This one is RM on Alamy - I tried to post a comment on your blog about your editorial article, but it didn't work! This sort of image would probably sell on Microstocks, but cloning out signs is one of my pet hates, so often I'll put the images on Alamy instead. I now limit editorial uploads on Microstock sites to things that I think will sell in significant volumes - if its more specialised, often you can get better results on Alamy.