Синий дым на индиго. Blue smoke
potassium chlorate - 30% starch - 15% Indigo - 40% blue dye - 15%
potassium chlorate - 30% starch - 15% Indigo - 40% blue dye - 15%
potassium chlorate - 30% starch - 15% Indigo - 40% blue dye - 15%
potassium chlorate - 30% starch - 15% Indigo - 40% blue dye - 15%