Double Sided Page of Ink Sketches: Women at Nail Salon?

Found in a pile along with a couple of drawings of boxers I'll list next, I'm thinking this double-sided page of sketches captures vignettes at a nail salon, including a couple of women with their hands in sinks clearly filled with hot water? I really like how they all swirl together on the page, including with literal swirls of what seems to be rising steam, and especially the two drawings of what look to be the same woman on one side, her hands at sink leading in to her feet as if one self tumbling into another. 

9 1/8" x 5 13/16".  Very good condition.