Not mine. Trying to help out family members from this old thread. These are just some of the stamps. There are tons more. Following are some examples.
I'm pretty sure they have some values, but how valuable are they? To me, who is clueless about these, they are just very cool, especially the US stamps.

USA








The world

Timely post.
I just finished (about 10 minutes ago)vacuum packing my Fathers stamp collection. He passed about a year ago at 91.
He collected his whole life and had his fathers collection in addition to his. I always remember a plate block he had autographed by astronauts that had been post marked in space. I was not into stamps but thought that was pretty cool.

No body in the family is interested in the collection and I will not sell it, I don't have any interest in its value. I will keep it in my gun safe and when I die somebody else can safe guard it until the day comes when somebody in the family has a interest in stamp collecting.I bought my Son a large safe so he can keep it safe when I'm gone.

My Mom collected stamps back in the 70’s, give or take.

She wanted me to check on the value. I looked on eBay, they had very little value checking comparables. Her’s were part of a ‘collector series’, different that yours. You may have a few gems mixed in.

I guess you could find a trustworthy person in-the-know to look them over.