Hello From NY - Inherited Some Old Stamps

Hello everyone my name is Steve and I just recently inherited some stamps from my wife's uncle. I have been going crazy with trying to figure out if these are worth anything so any tips would be great for a newbie. The only thing I noticed was a envelope of a Chilean stamp. I have googled it a few times and cannot find anything on it. Either way I look forward to talking more with everyone and hope you can help. Thanks!

People here need scans to give you an opinion. Can tell you though that "old stamps" are more than 50 years old. More recent - not old.

I have 500 of these. Most stuff seems to be older than 50 years.

I have answered under the World Modern stamp forum.