This term means the stamp has no tears, no holes,no thin spots, no creases and no missing parts. It does not say anything about the centering , the gum or cancellation. If the stamp has missing corners or missing perforations or stains, I think should be mentioned if the stamp is described as sound.
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.
Austrian Republic
50th anniversary of the death of Franz Lehar
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.
Yes, if you mean the Scott Standard Postage Stamp Catalogue ,each its 6 volumes can bought separately as can the US specialized catalogue.
The British Penny Black stamp was the world's first adhesive postage stamp and it went on sale in Great Britain on May 6th 1840.
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