Unusual drawing of a young girl signed L.S.Lowry..9 1/2 by 7

This unusual drawing of a young girl was found at a car boot sale a few months ago..the girl is dressed in what looks like a clowns outfit ..it is signed L.S.Lowry....but I dont think its by that artist...as Lowry did the match stick men paintings and drawings of factories...I decided to buy it as it looked strange ... Please look at my other items THANKS