Naphtha Soap sign

Very old sign advertising Naphtha Soap. It measures 18 x 12 inches and was made by Niagra Litho Co, of Buffalo NY. It has LNX-29 in the lower left corner, we presume it was from 1929 as it is made in the style of signs from the 20s and 30s. It is made of thin metal and has been previously displayed, therefore it does have some light scuffs and dings. Please see photos for details. RARE almost hundred year old sign, what a find!