Original vintage architectural trade magazine ad for PRATT & LAMBERT, INC. of New York City, NY.  Vitralite White Enamel.  Wherever, as a Crowning Touch to Superior Architecture, a Permanent, Porcelain-Like White Finish is Wanted, as in the residence of Colonel John Jacob Astor, Vitralite is the Last Word.  Old 1912 61 Floor Varnish advertisement.