The Postcard A postcard that was published by the Success Postal Card Co., Publishers, of New York. The card was printed in Germany. The card was posted in New York on Monday the 1st. August 1921 to: Mr. Jos. C. Aigner, Unlawater House, Newnham-on-Severn, Gloucestershire, England. Unlawater house is a mansion overlooking the River Severn.… Continue reading New York – Plaza Hotel Prior to 1921. And Donald Trump.