yes, busted!!!!
I take it, you've seen "that staircase" in previous photos, lol.
It's kinda like having 'central vac' in the house. Actually, it takes a while to thoroughly vacuum those stairs and the upstairs hall. One time, during the major restoration part of the house, I head a helper ask the carpenter, "What's with all the sweepers"?
But, a Constellation OR a nice Celebrity with the upholstery brush will really get all the creases in those steps.