Austrian Republic
It stands for Republic of Austria. Austria is a country in Europe.
It is Italian for a postage stamp.
It means one individual stamp.
Ajman
"Sverige" is the Swedish word for Sweden. On a postage stamp, it indicates that the stamp is from Sweden or related to the country in some way.
50th anniversary of the death of Franz Lehar
Yes, if you mean the Scott Standard Postage Stamp Catalogue ,each its 6 volumes can bought separately as can the US specialized catalogue.
That will depend on the stamp and the country it is from. Sometimes it is the engraver's name. It could be a plate number. It might even be the name of the printing company.
The paper labels on mailed papers are called postage stamps. They indicate that postage has been paid for the delivery of the mail.
'gerekeid' isn't a Dutch word. I'm assuming you mean 'gerekend'. (quite literal) translation: The parcel postage stamp says 2.60 and has charged 8.50 (this sounds better to me): The parcel postage stamp says 2.60, but it cost 8.50 Reading this sentence I'm assuming the post office has either overcharged (the stamp says 2.60, but they had to pay 8.50) or the package was heavier than the sender had expected and they had to pay more than the avarage parcel postage stamp costs.
when a postage stamp is placed upside down it means i love you
It allows for International Posting of Business letters without applying a postage stamp in country of posting.