An unidentified Ala Littoria S.73. The thick wing section is shown to advantage.

Avio Linee Italiane's S.73s I-SAMO and I-STAR at Milan's E. Forlanini Airport (now Linate).

One of CSA’s Walter Pegasus-powered S.73s at Prague-Ruzyne Airport.

Sabena’s S.73 OO-AGP seen at Croydon on May 8, 1937. The ghost figures are the result of a time exposure and not due to excessive speed of the groundcrew!

Ala Littoria’s S.73 I-ORTE, with Wright Cyclone engines

The SABCA-built S.73 OO-AGT, with Mistral Major engines and modified flight deck windows.

The interior of a Sabena S.73. The higher level of the forward cabin is apparent.

KEITH WOODCOCK'S painting depicts the Sabena S.73 OO-AGP.

A publicity cutaway drawing issued by Sabena. In fact this is the prototype S.73P with original fin and rudder and fore-and-aft-facing seats.