XEN0QQ 1927

S.S. Bandoeng

This callsign came before prefixes were authorized for amateur radio stations.
In this situation the station's callsign is 0QQ. The characters "xen" are unofficial, but  were "indicatives" accepted for worldwide use.
    The "X" identifies this station as a station on a ship.
    "e" The station is located in Europe.
    "n" station is located in The Netherlands.
According to The U.S. Department of Commerce (Radio Divison), Radio Service Bulletin #156, published March 31, 1930, the operator was C. A. Gehrels, nPCK4 in 1926, PA0QQ, of Eindhoven.

QSL K8CX Collection
Info courtesy of W5KNE
nPCK4 info courtesy of F2VX