Portomærken
Kroatien, Michel Porto 1, Stemplet
1941. HRVATSKA NEZAVISNA DRZAVA HRVATSKA (SHIELD) overprint on 50 P.
Kroatien, Michel Porto 2, Stemplet
1941. HRVATSKA NEZAVISNA DRZAVA HRVATSKA (SHIELD) overprint on 1 D.
Kroatien, Michel Porto 4, Stemplet
1941. HRVATSKA NEZAVISNA DRZAVA HRVATSKA (SHIELD) overprint on 5 D.
Kroatien, Michel PORTO 6-10, Stemplet
1941. HRVATSKA NEZAVISNA DRZAVA HRVATSKA (SHIELD) overprint on 5 D.