I hate postage stamps.

[Marthe48]

3. My Mom gave me her stamp album

She stopped adding stamps to it in 1938 or so. Most of the stamps were canceled. She got them from her Dad who had an antique shop. Then about 10 years ago, we bought a box of papers for few dollars and there were 20 or 30 envelopes with canceled stamps on them. During Covid, i tried to figure out what I had. Haha, passed some of those dark hours! I still have no idea what kind of value of any of my small collection of old stamps.

I found a web site called Stampworld.com: https://www.stampworld.com/en/

It might help you, or not.