Zeppelin Hero of World Flight Wins Great Welcome in New York. The first round-the-world letter to arrive here from the German dirigible Graf Zeppelin after its record-breaking trip of 20,000 miles in 21 days, was delivered to 7-year-old Charles W. Herschel, in care of his father, Albert, at 69 Newbury street today. The letter was sent from Cambridge by the lad's grandfather, and cost $3.55 to mail.