Persian Stamp Sc#29 And Sc#425 Forgery?

Little by little I have been acquiring a small group of Persian stamps (Iran). They are not stamps that attract me much... but they caught my attention because they somewhat break the mold of what I generally collect, and I also found them in small groups which made it easier for me to decide to take them home.
The fact is that when classifying the last ones I obtained, I have read in the catalog that there are many forgery, and I have doubts about a couple of them...SC#29 of which there are two copies, and I think the one on the left could be false..and also of the two copies of SC#425 I think that both could be fake since the paper does not resemble (in one at all and in the other a little) the paper of SC#424 and SC#426 that I have
I'll give you photos of my entire group in case you see anything else, and two more of the doubtful ones aside.

As you no doubt are aware, other than getting these expertized by a competent authority it is all a gamble. Iranian stamps are hands-down the biggest minefield in philately. Not only are counterfeits plentiful, "official" and other reprints abound. These reprints and counterfeits are not limited to high catalog value stamps. Add to that the number of CTO's in the marketplace and IMO collecting early Iran should be done for fun only. Are all of your stamps genuine? Some? (shrug) Who knows.

If you want to educate yourself about detecting fakes, I highly recommend this APS Stamp Chat video:

Yes, stamps from Persia are loaded with fakes. It's so bad that the action houses mention it often in the description. That being said, you can buy them expertised. And real stamps are rare/scarce relative to the price. ie the fakes depress the price. First I assume all stamps are fake. Then I go to the literature to figure out which ones are real. That APS link is a great resource.

Thanks, I'll look at it!! For now, after a brief investigation I am 100% sure that SC#425 are fake.