I guess that the black eagle on gold is the correct one. Tha was emblem of the Holy Roman Emperor (it was used as such in the devices of the Duchy of Milan).
A similar device as the top-right appear in the You are not allowed to view links. Register or Login to view.; it is labelled "Allamania" which I interpret as "Germany".
A better fit appears in Wernigeroder (Schaffhausensches) Wappenbuch - You are not allowed to view links. Register or Login to view. as "das lande ob der Ens", i.e. the river Enns in Northern Austria.
A similar device as the top-right appear in the You are not allowed to view links. Register or Login to view.; it is labelled "Allamania" which I interpret as "Germany".
A better fit appears in Wernigeroder (Schaffhausensches) Wappenbuch - You are not allowed to view links. Register or Login to view. as "das lande ob der Ens", i.e. the river Enns in Northern Austria.

