The number most likely refers to one of the following specific technical papers or products: Scientific and Technical Papers
: Newspaper archives from March 1955, such as the Orem-Geneva Times (1955-03-03) or The Daily Echo (1955-03-09). 195503
: Miller 195503 RCCS-6M , a 26.5 ft remote fingertip control for welding, available at retailers like Weldfabulous . The number most likely refers to one of
: "The electronic structure and optical response of rutile, anatase and brookite TiO2" , published in Journal of Physics: Condensed Matter (2012). anatase and brookite TiO2"