Documentary images — company attribution uncertain

Rosanoski warns that A311 may be confused with the flag of Costeira S.A. di Navigazione Marittima.

Definitive company attribution remains disputed.

The long document mixes prewar Hungarian and postwar Italian companies and debates rival flag attributions. A single Austro-Hungarian country cannot be applied to later Italian liveries. A310, explicitly cited here, is mapped to Costeira elsewhere; no source mapping was altered.