Front:
6607
Photo by K, L, M., Royal Dutch Airlines,
Copyright,
Dayboat of the Zeeland Steamship Co.
Royal Mail Service between Flushing and Harwich.
3000 Tons, 10000 Horsepower, speed 22½ knots.
Back:
Copyright Koninklijke Luchtvaart Maatschappij. Fototechnische Dienst. Rotterdam
