Need Opinions On World Classics

I have reasons to believe some of these could be potentially valuable. Here's the start of a bunch. Thanks

Hello!
The first is a British cut square from a stamped envelope. The second is a cut out from an Italian postal card. Both are very common. I'll let someone else handle the others, but I don't see any high value items, sorry.

From 2010 Gibbons SOTW:

France, Napoleon III, 20c - 65p if in perfect condition, i.e. 10% of that in the real world, so pennies for the first and nothing for the second; 1c - can't tell if cut-down or imperforate, but of no value in that condition.
Sweden - 1855 4 skilling blue - catalogued @ £55 in perfect condition - again a fifth to a tenth of that in the real world. This is poorly centred.

Why did you think that these were valuable?

Your Queen Victoria penny pink cut square would have been potentially valuable if it had been on a complete cover. As it stands it still has philatelic interest if not financial.
It is a cut square from postal stationery which would have been up-rated with stamps as it was REGISTERED mail. There are traces of a stamp/stamps to the left of the embossed penny pink and part of the REGISTERED oval postmark has been removed along with the stamp/s. A possible date on the postmark is October 26 1895 but the town/city in unclear.

Like others have mentioned, the quality is poor, so nothing valuable here.

Thanks again for your input. I will keep trying.

scotzm - people whop trade in their cars believe they are worth three times their book value. People who don't know stamps and find a book of old stamps (say from the 1940s or so) think they are valuable.

Some of these people list the stamps on ebay at ridiculous prices. It's a pet peeve for me in my collecting area.

At least stampcrazed sought out advice before blindly posting the stamps on ebay for a ridiculously high price.

My pet peeve is presumptuousness also. However I do not assume these are valuable stamps without investigating first. I don't always post my reasons because I'd like to hear your reasons first..,yet for some your opinions seem less educated than I had hoped. I could discuss all of my resoning (and I might... to prove a point) but I want YOURS! Often prices some say the stamps might be worth usually don't match the values in the latest classics catalog I own for the most part. Could your reference material be outdated?
If my lack of knowledge bothers you feel free to refrain from commenting. Arrogance is the most frustrating block on the road to learning. I am a humble and willing student.
This really isn't the school of philately and I believe I'm not required to take an exam. Despite the fact that you think I know very little, I still feel the best way to learn is through people's insights who've had the hands on learning I can't afford. I truly appreciate those who've given me links to investigate and also for the detailed reasoning you've given me regarding these stamps that I must reconcile with. I'm reading a lot! Cheers!

Catalogue prices move, usually, although not always, upwards. But, in almost every case, something that was worth little in 2010 - or, for that matter, 1960 - isn't going to be worth anything now. And catalogue values do assume excellent condition - prices fall rapidly for anything else. And the catalogues themselves are some way from what most stamps sell for in the real world - often being five to ten times more than the market price.

More insights please

The one from Pakistan is reversed. The moon is pointing in the opposite direction than the regular issue. Could that make it special?

stampcrazed Pakistan issued 2 versions of that stamp with the moon pointing in opposite directions on each stamp. Both versions are worth pennies.

Oops! Wrong about Pakistan. Not worth squat. #128547;

As they seem to be mounted in an album, it should be fairly easy for you to find them yourself:

http://www.stampworld.com/en/