Can You Help Me On These (Iranian?) Stamps?

In the album I have (Iposted pictures of everything in my thread in the main stamp folder), this was between some pages and from what I've been able to tell, these are Iranian stamps. I'm just wondering what you can tell me about them - especially the one on the upper right hand side. I wouldn't even know where to begin with that one. Thanks!

Hello friend!

Nice piece!

First row:

3ch magenta - Riza Sha Pahlavi - 1929 - Scott #746 - Cat. 0.25
1ch green - Riza Sha Pahlavi - 1929 - Scott #744 - Cat. 0.25
1k violet - Lion - 1909 - Scott # 455 - Cat. $2.00
5c red-buff - 1902 - Handstamp Overprinted in Rose - Scott #250 - Cat. $ 2.00

Second Row:

6c magenta - Riza Sha Pahlavi - 1926 - Scott # 727 - Cat. $0.25
15d gray - Riza Sha Pahlavi - 1933 - Scott #773 - Cat. $ 0.25
6ch yel-brown - Riza Sha Pahlavi - 1929 - Scott #747 - Cat. 0.25
3c gray-green - Shah Ahmed - 1911 - Scott #483 - Cat. $ 0.20
2ch scar-blue - Riza Sha Pahlavi - 1929 - Scott #745 - Cat. 0.25

Regards!
Rodolfo