1974-1978 Mint Sets Problem

There was a time (so long ago) where I thought I would start a stamp collection. So I bought mint sets from the post office 1974,75,76,77, & 78. As well as a North American Game Bird Series companion collector stamps 1984,85,86 & 87.
So far so good.
In the ensuing decades I faithfully kept these large envelope of stamps "safe" and secure. However, it seems that a hurricane flooded basement added enough dampness that today these stamps are stuck in place. In their original containers.
So do they have any collection value at all? Or should I just donate the whole thing to the Boy Scouts?

Thanks for any guidance.

Most modern mint U.S. stamps even in perfect condition including those of the 1970's are still very plentiful and easy to find via stamp dealers at shows or on the Internet. Even those in perfect mint condition sell for below face value as supply is higher than demand. There are also dealers who sell these kinds of postage stamps in bulk for less than face to be used as discount postage. I don't know if its worth your time, but you can try to soak them off from their mounts and each others and then use them for postage. You'll need a glue stick to apply them to envelopes.

I'm not sure about the North American Game Bird Series companion collector stamps. Are they the same as Migatory Duck Hunting Stamps or something else?

Sorry to be the bearer of bad news. Basements are usually never a good place to store stamps - nor are attics or garages.

Kinda expected this. Thanks for taking the time to answer.

The North American Game Bird Series commemorative stamps 1984-87 are in excellent condition. But they do not appear to have any sale value or use. Just wondering if someone wants them. They have no value to me.

Soak them in room temperature water and they should come apart. As was previously mentioned you'll need a glue stick. If you don't want to hassle with all of this I work with a 4th grade class and they would love to do it. Just go ahead and pm me and I'll be happy to reimburse you for the postage necessary to mail them. The kids will love you.
Tom

I can't offer any better advice than this, though, I would offer a question/comment re: Battlestamps comment about modern mint stamps being worth less than face. I would counter that this is not always true. It's true if you want to buy a big grab bag of mint stamps - I have seen dealers sell $100 face value for $70 or $80. But if a collector only wants some specific stamps or sets from an era, a collector often has to pay face value or more - whether it be on BidStart, stamps2go or ebay or at a show. So, I guess I would contend that someone with modern mint US stamps could sell them at a higher price .. you might need a huge stock (and thus become a dealer yourself), but it's possible. Or am I crazy? (well - yes - I am, but ...)

Stamps are always worth face value because you can always stick them on a letter, or in this case, soak them and then glue them to a letter, and use them for postage. This is true of all stamps that haven't been devalued in some way.