These are my postal stamps from Libya.
I'm interested in these three postal stamps I'm not sure about. A yellow question mark is also indicated beside them.
Also interested in me, this circular postmark (marked with a red arrow), on which the year is written in the opposite direction from the date. Is this common?
I plan these stamps, exchanging for US postal stamps. But I have to find out more about them.



In the image below, you can see more pictures of sheets. I'm not sure, are these stamps? There are no perforations on these 'sheets'?
Are these 'sheets' related to philately?
